Acorus gramineus 'Cava' – This is a completely golden form of Dwarf Sweet Flag from Lance Reiners in California. Plant it as a marginal, in a container with other smaller growing ornamentals, or as an edging plant in fertile soil its grass-like texture will complement and contrast. In more shade expect a less bright yellow plant; it will be more chartreuse. Clumping. Established Dwarf Sweet Flag via division.