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Water Primrose

Ludwigia adscendens

Also called Creeping Water Primrose, Red Ludwigia, Water Dragon

Water Primrose
Photo: Symoum Syfullah Priyo, CC BY-SA 4.0

Ludwigia adscendens is a floating or creeping aquatic perennial in the evening primrose family, usually grown in wet paddies and shallow water rather than as a garden or houseplant. Its key to success is simply keeping it wet and in full sun.

Family
Onagraceae (Evening-primrose family)
Grows as
Aquatic, Perennial
Light
Full sun
Water
Grow it submerged or floating in shallow, standing water; it cannot be watered like a normal pot plant.
Soil
Muddy or silty pond or paddy bottom, or floating in open water.
Temperature
Warm tropical conditions, roughly 20–35 °C; sensitive to frost.
How easy
Easy
Native range
Tropics & Subtropics
Climate
wet tropical

About

Ludwigia adscendens, the water primrose, is a species of flowering plant in the evening primrose family. Its native distribution is unclear. It is now a common weed of rice paddies in Asia and occurs also in Australia and Africa, but may have originated in South America.

This plant is a perennial floating herb with white spongy buoys, and can float on water surface as well as creep over the surface of wetlands. The plant has simple leaves with elliptic blades, which are 0.4–7 cm long and 0.7–3 cm wide. Its petioles are 0.5–1.0 cm short. Its cream flowers emerge singly at axils, and each have 5 sepals, 5 petals, and 10 stamens.

Other Ludwigia plants

Large-flower primrose-willow · Water Primrose · Seedbox · Ludwigia inclinata · Marsh seedbox · Peruvian primrose-willow · Hairy primrose-willow · Creeping primrose-willow

Text excerpted from the Wikipedia article Ludwigia adscendens 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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