Toggle menu
info@bloomindesigns.com

Imagine More Perennials Than You Can Imagine, Delivered To You - Free

Shop by Category

  • Shop Plants A to Z
  • Ornamental Grass
  • Location Solution Plants
  • Perennial Gardens
  • Current Specials & New Plants

    • Shop by Brand

  • Hosta
  • Hemerocallis
  • Sedum
  • Heuchera
  • Phlox
  • Echinacea
  • Whitehall
  • Iris
  • Helleborus
  • Coreopsis
  • View all Brands
  • Shop Plants A to Z
  • Ornamental Grass
  • Location Solution Plants
  • Perennial Gardens
  • Current Specials & New Plants

    • Shop by Brand

  • Hosta
  • Hemerocallis
  • Sedum
  • Heuchera
  • Phlox
  • Echinacea
  • Whitehall
  • Iris
  • Helleborus
  • Coreopsis
  • Dianthus
  • Hibiscus
  • Astilbe
  • Salvia
  • Liriope
  • Monarda
  • Baptisia
  • Veronica
  • Clematis
  • Lavandula
  • Achillea
  • Aquilegia
  • Buddleia
  • Leucanthemum
  • Ajuga
  • Carex
  • Delosperma
  • Delphinium
  • Hedera
  • Paeonia
  • Gaillardia
  • Lantana
  • Papaver
  • Sempervivum
  • Campanula
  • Heucherella
  • Digitalis
  • Geranium
  • Kniphofia
  • Mangave
  • Nepeta
  • Agastache
  • Miscanthus
  • Panicum
  • Vinca
  • Alcea
  • Athyrium
  • Perovskia
  • Aster
  • Dicentra
  • Lupinus
  • Penstemon
  • Ophiopogon
  • Primula
  • Anemone
  • LAGERSTROEMIA
  • Thymus
  • Epimedium
  • Euphorbia
  • Heliopsis
  • Iberis
  • Pennisetum
  • Stokesia
  • Tradescantia
  • Brunnera
  • Platycodon
  • Verbena
  • Agave
  • Allium
  • Rudbeckia
  • Bergenia
  • Gaura
  • Lamium
  • Pulmonaria
  • Acorus
  • Calamagrostis
  • Euonymus
  • Lobelia
  • Pachysandra
  • Polemonium
  • Amsonia
  • Armeria
  • Asclepias
  • Gypsophila
  • Ligularia
  • Scabiosa
  • Stachys
  • Tiarella
  • Viola
  • Alstroemeria
  • Artemisia
  • Aruncus
  • Dryopteris
  • Colocasia
  • Crocosmia
  • Hakonechloa
  • Liatris
  • Lysimachia
  • Mazus
  • Schizachyrium
  • View all Brands

    • Nassella

    Nassella is a genus of grasses commonly known as needlegrasses. They are native to the Americas, with a distribution ranging from North America down to South America.

    The name "Nassella" comes from the Latin word "nassa," meaning "a basket with a narrow neck," referring to the shape of the grass's inflorescence.

    • Nassella tenuissima Pony Tails 10ct Quarts Nassella tenuissima Pony Tails 10ct Quarts

      Nassella

      Nassella tenuissima 'Pony Tails' (10)ct Quarts

      Nassella tenuissima 'Pony Tails' Common Name: Mexican feather grass; formerly Stipa tenuissima. Zone 6 to 10, may not be winter hardy below 20 degrees F. Sun to part sun.Mature foliage height and width 18 to 24 inches,cool season forms dense clumps. ...

      $99.89
      Choose Options
    Compare Selected

    Nassella tenuissima

    Common Names: Argentine Needle-Grass, Fineleaved Nassella, Finestem Needlegrass, Mexican Feather Grass.

    Origin: Native to New Mexico, Texas, Mexico, and Argentina.

    Invasiveness: Considered invasive in Australia and problematic in parts of California.

    Appearance: Features fine, feathery leaves that sway in the wind, with silvery yellow spikelets and feathery seed heads.

    Growth: Can be grown as an annual in colder climates, drought-tolerant but may go dormant in extreme heat.

    Problems: Susceptible to aphids, leaf spot diseases, and root rot in overly wet soils.

    Uses: Often used as an ornamental plant but can escape gardens due to prolific seed production.

    Cultural Conditions: Prefers full sun to partial shade, well-drained soils, and can tolerate a range of soil types and pH levels.

    Landscape Use: Suitable for containers, rock gardens, and drought-tolerant gardens. Resistant to deer and erosion.

    Key characteristics of Nassella grasses:

    • Perennial bunchgrasses: They form tufts or clumps rather than spreading rhizomes.
    • Fine-textured foliage: The leaves are typically very narrow and delicate, often giving them a wispy appearance.
    • Delicate inflorescences: The flowering heads are usually panicles with small, inconspicuous spikelets.
    • Adaptability: They are found in a variety of habitats, including grasslands, open woodlands, and rocky slopes.

    Some notable species of Nassella:

    • Nassella tenuissima (Mexican feathergrass): A popular ornamental grass known for its fine, hair-like foliage and graceful appearance.

    Nassella tenuissima (Mexican feathergrass)

    • Nassella trichotoma (Serrated tussock): A highly invasive species in Australia and other regions, known for its ability to outcompete native vegetation.
    • Nassella pulchra (Purple needlegrass): A native Californian bunchgrass that is an important component of the state's grasslands.

    Ecological and economic importance:

    • Forage: Some Nassella species are palatable to livestock, but others, like N. trichotoma, are unpalatable and can even be harmful.
    • Erosion control: Their dense root systems can help stabilize soil and prevent erosion.
    • Ornamental use: Several species, particularly N. tenuissima, are cultivated for their attractive appearance in gardens and landscapes.
    • Invasive potential: Some species, like N. trichotoma, have become invasive pests in areas outside their native range, posing a threat to biodiversity and agriculture.

    In summary, Nassella is a diverse genus of grasses with a range of ecological roles and economic impacts. While some species are valued for their ornamental or forage qualities, others are considered invasive weeds. Understanding the characteristics and distribution of different Nassella species is essential for managing their impacts and appreciating their place in the natural world.

    Nassella FAQ

    Nassella grasses share several key characteristics:

    Growth Habit:

    • Perennial bunchgrasses: They grow in clumps (or bunches) and do not spread through rhizomes or stolons. This makes them less aggressive spreaders than some other grasses.

    Foliage:

    • Fine-textured: Their leaves are very narrow, almost hair-like, giving them a delicate and airy appearance.
    • Color: Often a light green or silvery-green, which can create a beautiful contrast with other plants.
    • Movement: The fine leaves sway gracefully in the slightest breeze, adding a dynamic element to the landscape.

    Inflorescence:

    • Panicles: The flowering heads are typically panicles, with many small, branching flower clusters.
    • Spikelets: The individual flowers (spikelets) are often small and inconspicuous, but they can add to the overall texture and appearance of the plant.
    • Seedheads: In some species, the seedheads have a distinctive feathery appearance due to long awns (bristles) attached to the seeds.

    Adaptability:

    • Drought tolerant: Many Nassella species are well-adapted to dry conditions, making them suitable for low-water gardens.  
    • Sun-loving: They generally prefer full sun but can tolerate some shade.
    • Well-drained soil: Good drainage is essential to prevent root rot.

    Other Characteristics:

    • Ornamental value: Many Nassella species are prized for their attractive foliage, graceful form, and ability to add movement and texture to gardens.
    • Ecological role: They provide habitat and food for wildlife, and their dense root systems can help with erosion control.
    • Invasive potential: Some species, like Nassella trichotoma (Serrated tussock), have become invasive in areas outside their native range, posing a threat to biodiversity.

    This combination of characteristics makes Nassella grasses a popular choice for gardeners and landscapers. However, it is important to choose species carefully, considering their growth habits and potential invasiveness in your region.

    Nassella classification within the plant kingdom. Here is a breakdown of its taxonomy:

    • Kingdom: Plantae (Plants)
    • Clade: Tracheophytes (Vascular plants)
    • Clade: Angiosperms (Flowering plants)
    • Clade: Monocots
    • Order: Poales (Includes grasses, sedges, and rushes)
    • Family: Poaceae (The grass family)
    • Subfamily: Pooideae (The cool-season grasses)
    • Tribe: Stipeae (Includes feathergrasses and needlegrasses)
    • Genus: Nassella

    A bit of history and debate:

    • Originally part of Stipa: Nassella species were once included in the genus Stipa.
    • Reclassified: In the late 20th century, Nassella was recognized as a distinct genus due to differences in spikelet structure and other characteristics.
    • Ongoing discussion: There is still some debate among taxonomists about the exact boundaries between Nassella and Stipa, and some sources may still list Nassella species under Stipa.

    Key features that distinguish Nassella:

    • Lemma: The lemma (a bract enclosing the grass flower) has overlapping margins and a distinctive "crown" at the tip.
    • Palea: The palea (another bract) is reduced and lacks veins.
    • Awns: The awns (bristles) are often bent and twisted.

    This taxonomic classification helps us understand the evolutionary relationships of Nassella grasses and their place within the plant kingdom. It also highlights their close relationship with other grasses in the Stipeae tribe, many of which share similar characteristics like fine foliage and delicate inflorescences.

    Let us delve into the morphology of Nassella grasses, which are fascinating and unique:

    Overall Form:

    • Tufted or Bunchgrasses: Nassella typically grows in dense clumps or tufts, arising from a basal crown. This growth habit distinguishes them from rhizomatous grasses that spread horizontally.
    • Culms (Stems): Erect or slightly geniculate (bent at the base), often slender and wiry. They can range in height depending on the species, from a few inches to several feet.

    Leaves:

    • Leaf Blades: Very narrow, often involute (rolled inwards), giving them a fine, thread-like appearance. This characteristic contributes to their drought tolerance by reducing water loss.
    • Leaf Sheaths: Wrap around the culm, providing support. They may be glabrous (smooth) or have varying degrees of hairiness.
    • Ligule: A membranous or hairy appendage at the junction of the leaf blade and sheath. Its shape and size can be useful for species identification.

    Inflorescence:

    • Panicle: The most common type of inflorescence in Nassella. It is a branched structure with numerous spikelets.
      • Open Panicle: Spreading branches with loosely arranged spikelets.
      • Contracted Panicle: More compact with branches and spikelets held closer together.
    • Spikelets: The basic unit of the grass flower, consisting of:
      • Glumes: Two empty bracts at the base of the spikelet.
      • Floret: A single flower enclosed by the lemma and palea.

    Floret Structure:

    • Lemma: The outer bract enclosing the floret. In Nassella, it has characteristic overlapping margins and a hardened, often pointed tip.
      • Crown: A distinctive feature of Nassella, it is a small, membranous, or hairy rim at the apex of the lemma.
    • Palea: The inner bract, usually smaller and thinner than the lemma. In Nassella, it is often reduced and may be veinless.
    • Awn: A bristle-like extension arising from the lemma. Nassella awns are often long, bent, and twisted, aiding in seed dispersal.

    Other Features:

    • Callus: A hardened, pointed base of the floret that can be sharp to the touch.
    • Hairs: The presence, type, and distribution of hairs on various parts of the plant (leaves, sheaths, glumes, lemmas) are important for species identification.

    Variations:

    • Cleistogamous Spikelets: Some Nassella species produce cleistogamous (self-fertilizing) spikelets, often hidden within the leaf sheaths. These spikelets are typically smaller and lack awns.

    Understanding these morphological features is crucial for identifying Nassella grasses and distinguishing them from other closely related genera. It also provides insights into their adaptations to their environment and their evolutionary relationships.

    Nassella, commonly known as Mexican Feather Grass (Nassella tenuissima), is a popular ornamental grass prized for its fine, delicate texture and graceful appearance. Here is a guide to cultivating Nassella:

    Planting:

    • Timing: Early spring or fall are ideal planting times, allowing the grass to establish itself before the onset of extreme temperatures.
    • Location: Choose a site with full sun to partial shade. Nassella thrives in well-drained soil and is tolerant of various soil types, including sandy, rocky, and clayey soils.
    • Spacing: Space plants 12-18 inches apart to allow for adequate growth and air circulation.

    Care:

    • Watering: Nassella is drought-tolerant once established, but regular watering during the first growing season will promote healthy root development. Water deeply but infrequently, allowing the soil to dry out between waterings.
    • Fertilizing: Nassella is not a heavy feeder. A light application of slow-release fertilizer in spring is usually sufficient.
    • Pruning: In late winter or early spring, cut back the foliage to about 4-6 inches to make way for new growth. This will help maintain the plant's shape and prevent it from becoming too unkempt.

    Additional Tips:

    • Mulching: Apply a thin layer of mulch around the base of the plant to help retain moisture and suppress weeds.
    • Pest and Diseases: Nassella is generally pest-resistant but can be susceptible to aphids and leaf spot. Monitor plants regularly and treat any issues promptly.
    • Propagation: Nassella can be propagated by seed or division. Divide mature clumps in spring or fall.
    • Winter Care: In colder climates, Nassella may benefit from winter protection. Apply a layer of mulch around the base of the plant to insulate the roots.

    Benefits of Growing Nassella:

    • Ornamental Value: Nassella's fine, airy texture adds a touch of elegance and movement to gardens and landscapes.
    • Drought Tolerance: Once established, Nassella requires minimal watering, making it a water-wise choice for dry climates.
    • Low Maintenance: Nassella is relatively low-maintenance, requiring minimal fertilization and pruning.
    • Versatile: Nassella can be used in various landscape applications, including borders, mass plantings, rock gardens, and containers.

    By following these cultivation tips, you can enjoy the beauty and grace of Nassella in your garden for years to come.

    Nassella tenuissima, or Mexican Feather Grass, offers several benefits that make it a popular choice for gardeners and landscapers:  

    Aesthetic Benefits:

    • Fine Texture: Nassella's delicate, hair-like foliage adds a soft, airy texture to gardens, contrasting beautifully with bolder plants.
    • Movement: The slightest breeze sets the foliage in motion, creating a dynamic and eye-catching display.
    • Color: Its green foliage often transitions to golden hues in fall and winter, providing long-lasting interest.
    • Versatility: It complements various garden styles, from modern and minimalist to cottage and informal.

    Practical Benefits:

    • Drought Tolerance: Once established, Nassella requires minimal watering, making it ideal for water-wise gardens and dry climates.
    • Low Maintenance: It needs minimal fertilization and pruning, making it a good choice for busy gardeners.
    • Erosion Control: Its dense root system can help stabilize soil and prevent erosion on slopes and banks.
    • Wildlife Habitat: It provides shelter and nesting material for small birds and insects.

    Other Benefits:

    • Cut Flowers: The attractive seed heads can be used in fresh or dried flower arrangements.
    • Container Gardening: Its compact size makes it suitable for growing in pots and containers.

    However, it is important to note that Nassella can be invasive in some regions. It is crucial to check its invasiveness status in your area and take necessary precautions to prevent its spread.

    Nassella tenuissima, with its fine texture and graceful movement, can be a stunning addition to your landscape. Here are some design tips to help you make the most of this ornamental grass:

    1. Play with Texture:

    • Contrast: Pair Nassella's fine texture with plants that have bolder foliage, such as succulents, yuccas, or broad-leaved shrubs. This contrast will create visual interest and highlight the unique qualities of each plant.
    • Repetition: Repeat plantings of Nassella throughout the landscape to create a sense of rhythm and continuity. This works especially well in borders or mass plantings.

    2. Embrace Movement:

    • Strategic Placement: Plant Nassella where it will catch the breeze, such as near walkways, patios, or entryways. The gentle swaying of the foliage will add a dynamic element to your landscape.
    • Background Planting: Use Nassella as a backdrop for more static plants, allowing its movement to create a sense of depth and dimension.

    3. Consider Color Combinations:

    • Complementary Colors: Pair Nassella with plants that have complementary flower colors, such as blues, purples, or pinks. This will create a vibrant and harmonious display.
    • Monochromatic Schemes: Combine Nassella with other plants that have similar green or golden hues for a subtle and sophisticated look.

    4. Utilize Nassella in Different Landscape Applications:

    • Borders: Use Nassella to define borders and edges, softening hard lines and adding a touch of elegance.
    • Mass Plantings: Create a dramatic effect by planting large swaths of Nassella, allowing it to flow and sway like a meadow.
    • Rock Gardens: Incorporate Nassella into rock gardens to add texture and contrast to the hard edges of rocks and stones.
    • Containers: Plant Nassella in containers to add a touch of movement and softness to patios, balconies, and decks.

    5. Manage its Spread:

    • Mindful Placement: Be aware that Nassella can self-seed and spread aggressively in some climates. Plant it in areas where it can be contained or choose a less invasive cultivar.
    • Regular Maintenance: Deadhead spent flower stalks to prevent unwanted seeding. Divide mature clumps every few years to control their size.

    By following these design tips, you can create a beautiful and dynamic landscape that displays the unique qualities of Nassella tenuissima.

    Planting Nassella tenuissima, or Mexican Feather Grass, is a fairly straightforward process. Here is a step-by-step guide:

    1. Choose the Right Time:

    • Early Spring or Fall: These seasons offer the best conditions for Nassella to establish its roots before facing extreme summer heat or winter cold.

    2. Select the Ideal Location:

    • Sunlight: Nassella thrives in full sun but can tolerate partial shade, especially in hotter climates.
    • Soil: Well-drained soil is crucial. Nassella is adaptable to various soil types, including sandy, rocky, or clay soil, but it dislikes consistently wet conditions.

    3. Prepare the Planting Hole:

    • Size: Dig a hole twice as wide as the root ball of your Nassella plant.
    • Depth: The top of the root ball should be level with the surrounding soil surface.

    4. Plant the Nassella:

    • Gently remove the plant: Carefully take the Nassella out of its container, loosening any circling roots.
    • Place in the hole: Position the plant in the center of the hole.
    • Backfill: Fill the hole with soil, gently firming it around the base of the plant.

    5. Water Thoroughly:

    • Initial watering: Give the newly planted Nassella a deep watering to settle the soil and encourage root growth.

    6. Spacing:

    • Individual Plants: If planting multiple Nassella plants, space them about 12-18 inches apart. This allows for adequate air circulation and prevents overcrowding.

    7. Ongoing Care:

    • Watering: Water regularly during the first growing season to help establish a strong root system. Once established, Nassella is quite drought-tolerant.
    • Mulching: Apply a thin layer of mulch around the base of the plant to help retain moisture and suppress weeds.

    Additional Tips:

    • Amend the soil: If your soil is heavy clay, amend it with compost or other organic matter to improve drainage.
    • Avoid overwatering: Nassella is susceptible to root rot in overly wet conditions.
    • Protect from frost: In colder climates, young Nassella plants may need protection from frost during their first winter.

    By following these steps, you will be well on your way to enjoying the beauty and grace of Nassella tenuissima in your garden.

    Mass planting Nassella tenuissima can create a stunning and dramatic effect in your landscape. Here is how to effectively use it in mass plantings:

    1. Visual Impact:

    • Textural Tapestry: The fine, hair-like foliage of Nassella creates a soft, flowing texture when planted en masse. This effect is amplified when the wind blows, creating a mesmerizing wave-like motion.
    • Sense of Space: Large drifts of Nassella can make a space feel larger and more open, especially when planted on slopes or in less defined areas.

    2. Design Considerations:

    • Spacing: Space plants about 12-18 inches apart to create a dense, flowing effect. Closer spacing (around 12 inches) will result in a fuller look sooner, while wider spacing (18 inches) allows for more individual plant definition.
    • Location: Choose a site with full sun to partial shade. Mass plantings of Nassella are particularly striking on slopes, along borders, or in open meadows.
    • Complementary Plantings: Combine Nassella with other grasses or perennials that have contrasting textures or colors to add depth and interest to the planting. Consider plants like lavender, salvia, or yarrow.

    3. Practical Benefits:

    • Erosion Control: The dense root system of Nassella makes it an excellent choice for stabilizing soil and preventing erosion on slopes and banks.
    • Low Maintenance: Once established, mass plantings of Nassella require minimal care, needing only occasional watering and an annual trim.
    • Wildlife Habitat: Dense stands of Nassella provide shelter and nesting materials for small birds and beneficial insects.

    4. Maintenance:

    • Trimming: Cut back the foliage in late winter or early spring to about 4-6 inches to remove old growth and encourage fresh new growth.
    • Dividing: Every few years, you may need to divide large clumps to maintain their vigor and prevent overcrowding.

    Examples of Mass Planting Nassella:

    • Meadow Effect: Create a naturalistic meadow by planting large drifts of Nassella along with other native grasses and wildflowers.
    • Border Definition: Use Nassella to soften the edges of walkways, driveways, or garden beds.
    • Slope Stabilization: Plant Nassella on slopes to prevent erosion and add visual interest.

    By carefully considering these factors and incorporating Nassella thoughtfully into your design, you can create a breathtaking landscape feature with this versatile ornamental grass.

    Caring for Nassella tenuissima (Mexican Feather Grass) is relatively easy, making it a popular choice for low-maintenance gardens. Here is a breakdown of its care requirements:  

    Watering:

    • Establishment: Water regularly during the first growing season to help establish a deep root system.
    • Mature Plants: Once established, Nassella is very drought-tolerant. Water occasionally during prolonged dry periods, but avoid overwatering, as it can lead to root rot.

    Fertilizing:

    • Light Feeder: Nassella does not require much fertilizer. A light application of a slow-release, balanced fertilizer in spring is usually sufficient.

    Pruning:

    • Annual Trim: In late winter or early spring, before new growth emerges, cut back the foliage to about 4-6 inches from the ground. This removes old growth and promotes fresh, new growth.
    • Removing Seed Heads: If you want to prevent self-seeding, remove the seed heads before they mature and disperse.

    Other Care Tips:

    • Mulching: Apply a thin layer of organic mulch around the base of the plant to help retain moisture, suppress weeds, and moderate soil temperature.
    • Dividing: Every 3-4 years, divide mature clumps in spring or fall to maintain their vigor and prevent overcrowding.
    • Pest and Disease Control: Nassella is generally pest-resistant but can occasionally be affected by aphids or leaf spot. Monitor plants regularly and treat any issues promptly.

    Specific Considerations:

    • Invasive Potential: Be aware that Nassella can be invasive in some regions. Check its invasiveness status in your area and take precautions to prevent its spread.
    • Winter Care: In colder climates, protect Nassella from harsh winter conditions by applying a layer of mulch around the base of the plant.

    By following these simple care guidelines, you can ensure that your Nassella tenuissima thrives and adds its graceful beauty to your landscape for years to come.

    Here is a comprehensive calendar of care for Nassella tenuissima (Mexican Feather Grass):

    Spring:

    • March-April: Divide mature clumps if needed to prevent overcrowding.
    • April-May: Apply a light layer of slow-release fertilizer.
    • May-June: Cut back any dead or damaged foliage.

    Summer:

    • June-August: Water regularly during dry spells, especially during the first year after planting. Established plants are more drought-tolerant.
    • Monitor for pests: Check for aphids or leaf spot and treat them promptly if necessary.

    Fall:

    • September-October: Remove spent flower heads to prevent self-seeding.
    • Late October-November: In colder climates, apply a layer of mulch around the base of the plant to protect it from winter frost.

    Winter:

    • December-February: No active maintenance is needed during winter.

    Additional Notes:

    • Watering: Reduce watering frequency in winter as Nassella becomes dormant.
    • Fertilization: Avoid fertilizing in late fall or winter.
    • Pruning: Wait until early spring before cutting back foliage, as this allows the plant to retain some winter protection.

    By following this calendar, you can ensure that your Nassella tenuissima remains healthy and beautiful throughout the year.

    While Nassella tenuissima is generally a low-maintenance and resilient plant, it can occasionally be affected by certain pests and diseases. Here are some of the most common ones to watch out for: 

    Pests:

    • Aphids: These tiny insects can suck sap from the plant, causing stunted growth and distorted leaves. Check for clusters of aphids on the undersides of leaves and stems. You can often control them with a strong stream of water or insecticidal soap.
    • Scale: Scale insects can also infest Nassella, appearing as small, immobile bumps on the stems and leaves. They can cause yellowing and wilting of the foliage. Horticultural oil or insecticidal soap can be effective in controlling scale.

    Diseases:

    • Leaf Spot: This fungal disease can cause brown or black spots on the leaves, which may eventually turn yellow and die. Ensure good air circulation around the plant and avoid overhead watering to prevent leaf spot. If it occurs, you may need to treat it with a fungicide.
    • Root Rot: Overwatering or poorly drained soil can lead to root rot, which can cause the plant to wilt and die. Ensure proper drainage and avoid overwatering to prevent this issue.

    Other Problems:

    • Self-Seeding: While not a pest or disease, Nassella's ability to self-seed can be a problem in some areas where it can become invasive. Remove seed heads before they mature to prevent unwanted spreading.
    • Winter Damage: In colder climates, Nassella can be susceptible to winter damage. Protect the plant with a layer of mulch around the base in late fall.

    Prevention and Monitoring:

    • Healthy Plants: Healthy plants are more resistant to pests and diseases. Provide optimal growing conditions, including well-drained soil, adequate sunlight, and proper watering.
    • Regular Inspection: Regularly inspect your Nassella for any signs of pests or diseases. Early detection and treatment can prevent more serious problems.
    • Proper Hygiene: Remove any fallen leaves or debris around the plant to reduce the risk of fungal diseases.

    By being aware of these potential issues and taking preventive measures, you can help your Nassella tenuissima stay healthy and thrive in your landscape.

    Nassella tenuissima, with its delicate texture and airy appearance, makes a wonderful addition to floral arrangements.

    Here is why it is a good choice:

    • Texture: The fine, hair-like foliage adds a soft and delicate touch to bouquets and arrangements, contrasting beautifully with larger flowers and foliage.  
    • Movement: Even when cut, Nassella retains its graceful movement, adding a dynamic element to arrangements.
    • Color: The green foliage provides a neutral backdrop for colorful blooms, and it often takes on golden hues in the fall, adding warmth to autumnal arrangements.
    • Long-lasting: Nassella dries well, so you can enjoy its beauty in dried arrangements long after fresh flowers have faded.

    Here are some tips for using Nassella in floral arrangements:

    • Fresh Arrangements:
      • Cut stems early in the morning when they are full of moisture.
      • Condition the stems by placing them in water for a few hours before arranging.
      • Use Nassella as a filler or accent to complement focal flowers.
      • Combine it with flowers that have contrasting colors and textures.
    • Dried Arrangements:
      • Cut stems when the seed heads are mature but not yet shedding.
      • Hang the stems upside down in a cool, dry place to dry.
      • Once dried, use Nassella as a base or filler in everlasting arrangements.

    Here are some floral arrangement ideas with Nassella:

    • Wildflower Bouquet: Combine Nassella with wildflowers like daisies, poppies, and cornflowers for a natural and whimsical look.
    • Modern Arrangement: Pair Nassella with succulents, orchids, or tropical flowers for a contemporary and minimalist feel.
    • Fall Arrangement: Use dried Nassella with dried flowers like hydrangeas, strawflowers, and wheat for a rustic autumnal display.

    No matter how you choose to use it, Nassella tenuissima can bring a touch of elegance and movement to your floral arrangements.

    This is a bit of a tricky question! While Nassella tenuissima does produce flowers and seeds, it is not a significant attractor of pollinators like bees and butterflies.

    Here is why:

    • Wind Pollination: Nassella is primarily wind-pollinated, meaning it relies on the wind to carry pollen from one plant to another. It does not need to attract insects for pollination.
    • Flower Structure: The flowers of Nassella are relatively small and inconspicuous, lacking the bright colors and strong scents that typically attract pollinating insects.
    • Nectar and Pollen: While Nassella flowers do produce some pollen, they generally do not offer much nectar, a key food source for many pollinators.

    However, this does not mean Nassella has no value for wildlife.

    Here are some ways it can support a healthy ecosystem:

    • Habitat: The dense clumps of Nassella can provide shelter and nesting material for small birds and insects.
    • Food Source: The seeds of Nassella can be a food source for some birds and small mammals.
    • Ecosystem Diversity: Even though it may not directly attract pollinators, Nassella contributes to the overall diversity of the plant community, which can indirectly support a wider range of wildlife.

    If your primary goal is to attract pollinators to your garden, there are many other plants that would be more effective than Nassella. Consider planting a variety of flowering plants with bright colors, strong scents, and ample nectar and pollen resources.

    But, if you are looking for a beautiful and low-maintenance ornamental grass that can still provide some benefits to wildlife, Nassella tenuissima is a great choice!

    Yes, Nassella tenuissima (Mexican Feather Grass) can be invasive in some regions. It is important to understand its invasive potential and take precautions if you choose to plant it.

    Here is what makes it potentially invasive:

    • Prolific Seed Production: Nassella produces a large number of seeds that are easily dispersed by wind, animals, and even human activities.
    • Adaptability: It thrives in a variety of conditions, including dry, sunny sites, and can tolerate poor soils. This adaptability allows it to spread readily into different habitats.
    • Competitive Growth: Nassella can outcompete native plants for resources, forming dense stands that displace other vegetation.

    Regions where Nassella is considered invasive:

    • California: It is particularly problematic in California, where it has invaded grasslands, woodlands, and coastal areas.
    • Other areas: Nassella has also shown invasive tendencies in parts of the Pacific Northwest, the Southwest, and Australia.

    What you can do:

    • Check your local regulations: Before planting Nassella, check with your local authorities or extension service to see if it is considered invasive in your area. Some regions may have restrictions on its sale or planting.
    • Choose non-invasive alternatives: If Nassella is invasive in your region, consider planting alternative ornamental grasses that are not known to be invasive.
    • Contain its spread: If you already have Nassella in your garden, take steps to prevent its spread. Remove seed heads before they mature to prevent dispersal. You can also divide the clumps regularly to control their size.
    • Be mindful of disposal: Do not dispose of Nassella clippings or seed heads in natural areas or compost piles where they could spread.

    Responsible Planting:

    While Nassella can be a beautiful addition to gardens, it is crucial to plant it responsibly. By being aware of its invasive potential and taking appropriate precautions, you can help protect your local ecosystem.

    Nassella tenuissima typically reaches a height of 1.5 to 2 feet.

    Here is a more detailed breakdown:

    • Without flower stalks: The foliage itself generally grows to about 1.5 feet tall, forming a soft, mounded shape.
    • With flower stalks: When the plant blooms in late spring and early summer, the delicate flower stalks rise above the foliage, adding another 6 inches to a foot to the overall height, bringing it to around 2 feet tall.

    Factors that can influence height:

    • Growing conditions: Nassella growing in optimal conditions with full sun and well-drained soil may reach the taller end of its height range.
    • Moisture levels: While drought-tolerant, consistent access to moisture can encourage more vigorous growth.
    • Competition: In crowded plantings, Nassella may grow slightly taller as it competes for sunlight.

    Keep in mind that these are general guidelines. Individual plants may vary slightly in height depending on their specific environment and genetics.

    The best time to propagate Nassella tenuissima is in early spring or fall.

    Here is why:

    • Active Growth: During these seasons, Nassella is actively growing, which means the divisions or cuttings you take will have a better chance of establishing themselves quickly.
    • Moderate Temperatures: Spring and fall offer moderate temperatures and typically more rainfall, providing favorable conditions for new root development.
    • Avoidance of Stress: Propagating in spring or fall avoids the extremes of summer heat and winter cold, which can stress newly planted or divided grasses.

    Spring Propagation (March-April):

    • This allows the new plants to establish themselves before the heat of summer.
    • It is a good time to divide mature clumps that have become overcrowded.

    Fall Propagation (September-October):

    • This gives the plants time to develop some roots before winter dormancy.
    • It is ideal for taking cuttings or dividing clumps after the summer heat has subsided.

    Methods of Propagation:

    • Division: This is the most common and reliable method for propagating Nassella. Carefully dig up a mature clump and divide it into smaller sections, ensuring each section has roots and foliage.
    • Seed: You can also propagate Nassella from seed, but it can be less reliable and may take longer for the plants to reach maturity.

    No matter which method you choose, proper care after propagation is crucial. Water regularly, provide adequate sunlight, and protect the new plants from extreme temperatures to ensure their successful establishment.

    While Nassella tenuissima (Mexican Feather Grass) is the most commonly known and widely available species, the Nassella genus actually includes over 100 different species of bunchgrasses. However, many of these are not commonly cultivated or available in nurseries.

    Here are a few other Nassella species you might come across:

    • Nassella pulchra (Purple Needlegrass): This California native grass is known for its beautiful purple-tinged flower stalks that mature to a silvery-tan color. It is a valuable component of California grasslands and provides habitat for various wildlife.
    • Nassella cernua (Nodding Needlegrass): Another California native, this species has distinctive nodding flower heads that give it a graceful appearance. It is well-suited to dry conditions and can be found in grasslands and open woodlands.
    • Nassella lepida (Foothill Needlegrass): This species is native to California and Oregon and is characterized by its fine, delicate foliage and open growth habit. It is often found in grasslands, oak woodlands, and chaparral habitats.
    • Nassella trichotoma (Serrated Tussock): This species is native to South America and is considered invasive in some parts of the world, including Australia and New Zealand. It has sharp-tipped leaves and can form dense tussocks that displace native vegetation.

    It is worth noting that due to taxonomic revisions, some grasses previously classified as Nassella have been moved to other genera, such as Stipa and Achnatherum. This can sometimes cause confusion when identifying different species.

    If you are looking for alternatives to Nassella tenuissima, consider exploring these other Nassella species or looking into related grasses in the Stipa or Achnatherum genera.

    Nassella Species, Groups and Cultivars

    Nassella species, groups, and cultivars! It can get a bit confusing. Here is a breakdown to clarify:

    Species:

    • As we have discussed, Nassella tenuissima (Mexican Feather Grass) is the most popular.
      • It is known for its fine texture, graceful movement, and tendency to naturalize.
    • Other species, like Nassella pulchra (Purple Needlegrass) and Nassella cernua (Nodding Needlegrass), are less common in cultivation but offer unique characteristics.
      • They are often valued for their ecological roles in native California grasslands.

    Groups (this is where it gets tricky):

    • Nassella belongs to the grass family (Poaceae), and within that, the subfamily Pooideae.
      • This subfamily contains many cool-season grasses, including wheat, barley, and many common lawn grasses.
    • More specifically, Nassella is in the tribe Stipeae, which is known for its needlegrasses and feathergrasses.
      • This is where the confusion with Stipa comes in, as many Nassella species were once classified under Stipa.

    Cultivars:

    • While there are few widely known cultivars of Nassella tenuissima itself, there are a few to note:
      • 'Pony Tails': This cultivar is known for its particularly long and showy flower plumes.
      • 'Angel Hair': This cultivar is slightly more compact and has exceptionally fine foliage.
    • Cultivars within other Nassella species are even less common.
    • Taxonomists (scientists who classify organisms) have debated the best way to categorize these grasses.
    • Historically, many grasses now in Nassella were placed in the genus Stipa.
    • Recent research has led to reclassification, but the names are often used interchangeably in the horticultural world.

    Key takeaway:

    • When you see "Nassella", it refers to a specific genus of grasses with distinct characteristics.
    • Understanding its relationship to Stipa helps explain why you might see similar-looking grasses with different names.
    • If you are looking for specific variations within Nassella, focus on the species and cultivar names, as these will give you the most accurate information about the plant's appearance and growth habits.

    Nassella tenuissima - some key points about this popular ornamental grass:

    What it is:

    • Common Names: Mexican Feather Grass, Finestem Needlegrass, Fine-leaved Nassella
    • Appearance: Known for its fine, hair-like foliage that forms a delicate, flowing mound. Produces airy flower plumes that sway in the breeze.
    • Native to: Southwestern United States, Mexico, and Argentina.

    Why it is popular:

    • Ornamental Value: Adds texture, movement, and a touch of whimsy to gardens.
    • Drought Tolerance: Requires minimal watering once established.
    • Low Maintenance: Easy to care for, needing minimal fertilization and pruning.
    • Versatile: Suitable for various landscape applications, including borders, mass plantings, and containers.

    Things to consider:

    • Invasive Potential: Can be invasive in some regions, so check its status in your area and take precautions to prevent its spread.
    • Self-Seeding: Readily self-seeds, so remove seed heads to control its spread.
    • Winter Hardiness: May need winter protection in colder climates.

    Cultivation:

    • Planting: Best planted in spring or fall.
    • Sunlight: Thrives in full sun but tolerates partial shade.
    • Soil: Prefers well-drained soil.
    • Watering: Water regularly until established, then only occasionally.
    • Pruning: Cut back foliage in late winter or early spring.

    Overall:

    Nassella tenuissima is a beautiful and versatile ornamental grass that can add a touch of elegance and movement to any garden. By understanding its growth habits and taking appropriate care, you can enjoy its beauty for years to come.

    Nassella tenuissima 'Pony Tails' is a delightful cultivar of Mexican Feather Grass that is prized for its extra-long and showy flower plumes.

    Here is what makes 'Pony Tails' stand out:

    • Exaggerated Flower Stalks: Compared to the standard Nassella tenuissima, 'Pony Tails' boasts significantly longer flower stalks that rise well above the foliage, resembling playful ponytails. These graceful plumes add an extra dimension of movement and texture to the garden.
    • Abundant Flowers: 'Pony Tails' tends to produce a greater profusion of flowers, creating a more dramatic and eye-catching display, especially when planted in masses.
    • Similar Care: The good news is that 'Pony Tails' shares the same easy-care requirements as the standard Nassella tenuissima. It thrives in full sun, well-drained soil, and is drought-tolerant once established.

    Here's how 'Pony Tails' can enhance your garden:

    • Focal Point: Its distinctive flower plumes make it a great focal point in borders or rock gardens.
    • Container Plant: Its compact size and graceful form make it well-suited for container gardening.
    • Textural Contrast: Pair it with plants that have bolder textures to create visual interest.
    • Movement and Sound: The long flower stalks sway beautifully in the breeze, adding a soothing sound element to the garden.

    Finding 'Pony Tails':

    This cultivar might be slightly harder to find than the standard Nassella tenuissima, but it is worth seeking out for its unique beauty. Check with local nurseries or online plant retailers specializing in ornamental grasses.

    If you are looking for a Mexican Feather Grass with a bit more flair and drama, Nassella tenuissima 'Pony Tails' is an excellent choice!