Water Chestnut
Eleocharis dulcis
Also listed as Eleocharis equisetina, Eleocharis plantaginea
Also known as Chinese Water Chestnut, Ground-chestnut, Waternut
Climate Match for your location
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Water chestnut is an aquatic perennial grown for its edible, crunchy tubers that develop underground in mud or shallow water. The plant produces thin, upright stems with minimal foliage and is cultivated in wetlands and paddy systems throughout Asia.
Why grow it
Water chestnut produces edible tubers with a crisp texture that holds up well in cooking, making it distinct from starchy root crops. Compared to other aquatic vegetables, it tolerates shallow water and muddy conditions typical of rice paddies and wetland systems, offering flexibility in site selection. The minimal foliage footprint means it competes less for light in polyculture settings, though yields depend on consistent water depth and warm growing seasons.
Watch out for
Tuber harvesting can be labor-intensive since plants are often grown in soft mud or water, and incomplete harvest leaves tubers behind to establish feral populations. Extended cold periods below 50°F slow growth significantly, so planting timing and water temperature management affect productivity. The thin stems are delicate and prone to breakage from strong water movement or disturbance during the growing season.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Cyperaceae
Native Range
Southeast Asia
Seasonality
Harvest Season
Edible Parts
Season of Interest
Notable Cultivars
The Chinese water chestnut (Eleocharis dulcis) is the primary cultivated form; modern selections are chosen for larger tuber size and earlier maturity.
Root layer
Root crops and the underground layer.
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Years to Bearing
- Propagation
Water chestnut is an aquatic perennial grown for its edible, crunchy tubers that develop underground in mud or shallow water. The plant produces thin, upright stems with minimal foliage and is cultivated in wetlands and paddy systems throughout Asia.
Climate Match for your location
See how well Water Chestnut grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
Why grow it
Water chestnut produces edible tubers with a crisp texture that holds up well in cooking, making it distinct from starchy root crops. Compared to other aquatic vegetables, it tolerates shallow water and muddy conditions typical of rice paddies and wetland systems, offering flexibility in site selection. The minimal foliage footprint means it competes less for light in polyculture settings, though yields depend on consistent water depth and warm growing seasons.
Watch out for
Tuber harvesting can be labor-intensive since plants are often grown in soft mud or water, and incomplete harvest leaves tubers behind to establish feral populations. Extended cold periods below 50°F slow growth significantly, so planting timing and water temperature management affect productivity. The thin stems are delicate and prone to breakage from strong water movement or disturbance during the growing season.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Cyperaceae
Native Range
Southeast Asia
Seasonality
Harvest Season
Edible Parts
Season of Interest
Root layer
Root crops and the underground layer.
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Years to Bearing
- Propagation
Similar root crops you might consider:
Enter your ZIP code to see top native species and strong climate fits for you.
Companion Planting
Plants well with
Notable Cultivars
The Chinese water chestnut (Eleocharis dulcis) is the primary cultivated form; modern selections are chosen for larger tuber size and earlier maturity.