An educational awards program of the Elisabeth Carey Miller Botanical Garden

Acorus gramineusOgon

variegated grassleaf sweetflag

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Outstanding Qualities The striking chartreuse foliage of sweetflag makes it an excellent accent in the mixed border, as a container plant, or at the water’s edge. This grasslike plant spreads by underground rhizomes but is not invasive. The foliage combines dramatically with larger leaved plants like hostas, or for dramatic color contrast, use it under Cimicifuga simplex v. simplex ‘Brunette’. For another striking combination, plant it with the black leaves of Ophiopogon planiscapus ‘Nigrescens’. ‘Ogon’ also makes a superb container plant. It is exceptionally hardy so it can be left in containers out-of-doors for several years before it will require dividing.
Culture ‘Ogon’ performs best with average water needs in saturated soils. This adaptable and easy to grow ground cover succeeds well in part shade to full sun, although the golden leaf color is more intense with more light.
Growing Habit This sweetflag spreads via underground rhizomes, making it an ideal ground cover. ’Ogon’ will grow approximately one foot high.
Hardiness USDA zones 6 to 10