Water mimosa (Neptunia oleracea)

Water mimosa

Water mimosa is an attractive water plant whose specific Latin name oleracea means herb or vegetable. This plant is grown ornamentally in ponds and rain gardens. It is classed as an invasive weed in some tropical locations due to its aggressive growth.

Scientific classification

Species

Water mimosa (Neptunia oleracea)

Legumes, milkworts and allies

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8 cm to 15 cm

Plant Height

90 cm to 1.5 m

Spread

2.5 cm

Flower Size

Yellow, Green

Flower Color

Semi-evergreen

Leaf type

20 - 38 ℃

Ideal Temperature

Images of Water mimosa

Distribution of Water mimosa

Distribution Map

Water mimosa is native to a broad region encompassing parts of Southeast Asia, Africa, Central America, and South America. It thrives in tropical and subtropical habitats within these continents. Additionally, water mimosa has managed to establish itself in some areas of cultivation beyond its native range.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Still-water areas

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Water mimosa

Every 1-2 weeks

Water

Full sun

Sunlight

20 - 38 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Originating from tropical areas, water mimosa thrives in high humidity and warm temperatures. It prefers consistent moisture, requiring watering every 1-2 weeks, and can tolerate brief dry spells. Best grown in water gardens or controlled containers, water mimosa benefits from mimicking natural rainfall patterns.

Pruning: Water mimosa features floating, fern-like foliage. For optimal health, prune in early spring, removing dead or diseased stems. This encourages denser growth, improves water circulation, and prevents rot. Make clean cuts and avoid heavy pruning to support ongoing growth and flowering.

Propagation: Water mimosa propagates well via sowing fresh seeds soaked for 24 hours, pressed into moist soil, and barely covered. Germination takes one to two weeks; consistent moisture and warmth are essential. Transplant established seedlings to a sunny spot in water or wet soil for healthy growth.

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