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Lanceleaf water plantain

Alisma lanceolatum

Also called Narrow-leaved Water-plantain, Narrow Water Plantain, Lance Leaved Water Plantain, Narrow Leaf Water Plantain

Lanceleaf water plantain
Photo: Chloe and Trevor Van Loon, CC BY 4.0

Lanceleaf water plantain is a perennial aquatic herb in the water plantain family, grown in shallow water or wet mud in full sun. It is often a weed of rice fields and can be invasive where introduced.

Family
Alismataceae (Alismat family)
Grows as
Aquatic
Light
Full sun
Water
Keep the roots submerged in water or saturated mud, with the crown about 15 to 30 cm deep in water.
Soil
Muddy, waterlogged soil or a pond-bed substrate of loam or clay.
Temperature
Hardy to USDA zones 5 to 8, roughly -20 to 0 °C in winter; the water can freeze over the crown in colder areas.
How easy
Easy
Native range
Macaronesia, NW. Africa, Europe to China
Climate
temperate

About

Alisma lanceolatum is a species of aquatic plant in the water plantain family known by the common names lanceleaf water plantain and narrow-leaved water plantain. It is widespread across Europe, North Africa and temperate Asia. It is naturalized in Australia, New Zealand, Oregon, California and British Columbia. It is considered a noxious weed in some places.

This species is a weed of rice fields in many areas, including New South Wales and California.

How to grow it

Grows best in water 15-30 centimeters deep in full sun. Suitable for USDA hardiness zones 5–8.

Other Alisma plants

Channelled Water Plantain · Narrowleaf water plantain · Alisma nanum · Asian Water Plantain · European water plantain · American water plantain · Northern water plantain · Baltic Water Plantain · Water plantain

Text excerpted from the Wikipedia article Alisma lanceolatum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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