Equisetum robustum (American horsetail)

Cultivation

Grow in fertile, neutral to acid, moist soil in full sun to partial shade. Can be planted in containers at water's edge or in up to 5cm of water. Though spreads slowly, may become invasive and will spread indefinitely.

Suggested uses

Ground Cover, Containers/Patio, Cottage/Informal, Waterside, Bog garden, Aquatic

UK hardiness

H7

USDA zones

Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9, Zone 10, Zone 11

Sunset zone

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Evergreen

Habit

Erect, Spreading, Clump-forming

Native to

North America, Greenland, Western China, Japan, Western Russia

Drought tolerant

No

Flood tolerant

Yes

Toxicity

Not toxic