Acorus gramineus 'Ogon'
Common name: Golden sweet flag, golden Japanese sweet flag, or Japanese rush (a.k.a. 'Wogon').
Zone: (5) 6 to 10,
evergreen in warm zones.
Sun to part shade, aquatic or wetland perennial.
Mature size: 6 to 12 inches tall, with 1/4 inch wide blade.
Narrow, grass-like, dwarf plant has yellow and chartreuse variegated leaf blades, that appear golden yellow. Tiny, densely-packed, greenish-yellow flowers emerge in late spring to early summer. Iris-like tufts will spread to form a dense ground cover, but is not invasive.
Eighteen (18) plants in 4 inch containers per flat (or tray).