Nasturtium officinale (Watercress)

Cultivation

Best grown in containers in slow-moving water 5cm deep. Can be grown in moist soil in partial shade with winter protection.

Suggested uses

Ground Cover, Containers/Patio, Underplanting, Waterside, 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

A1, A2, A3, 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

Deciduous

Habit

Mat-forming

Native to

Northern Africa, Europe, Southwestern Asia

Drought tolerant

No

Flood tolerant

Yes

Toxicity

All parts are edible but care should be taken if harvested in the wild. Plants growing in water that drains from fields where livestock is kept should not be used raw.