- (Please note: these have been potted late fall but will not be rooted-in until late spring. Plant as is - preferrably on a cooler day; they'll never know what hit 'em). - A curiosity for sure, several inches long purple spadix (mouse tails) sticking out of glossy, arrow-shaped foliage, the rest of flower is hidden. Spreading by rhizomes, it is great filler around clumping plants that are in seaon summer and fall, like Epimedium, Hosta, Heuchera, shrubs, etc., etc. Likes humusy soil; moist in spring - drought tolerant in summer when the plant is dormant.