Horsetail (Equisetum hyemale) is a perennial plant with hollow stems and no leaves. Growing in the wild, in or along the banks of streams and rivers, it grows to 4 feet in height. Horsetail spreads by rhizomes and will, if not controlled, take over the area in which it is planted. The horsetail plant is low maintenance, with no special soil requirements. The horsetail plant is hardy to USDA zones 4 to 11.
Grow your horsetail plant in an area where it will receive sun in the morning and afternoon shade.
Water the horsetail plant frequently. Although it can tolerate a bit of drought, in the wild it sometimes grows directly in water. Saturating the soil frequently will help the plant to thrive.
Prune the horsetail if the stalks become damaged by cutting them off at ground level. If you cut mid-branch or higher the plant has a tendency to branch into multiple stems, making it top-heavy.