'Horsetail Rush' Equisetum hyemale Ornamental & Garden/Water & Pond A very primitive plant, structually unusual and unique looking with rigid lush evergeen upright growth, bold in container and water gardens. Clumps of long cylindrical deep green stems have brown-black bands of primitive miniture leaves at regular intervals and are tipped with cones. Easy to grow perennial cold hardy to zone 4. Can be invasive, propagates by spore & division. Has very few pests and is tolerant of a wide range of conditions. Up to 4’ tall.