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PlantFiles: Water-Chestnut
Eleocharis dulcis

Family: Cyperaceae (sy-peer-AY-see-ee) (Info)
Genus: Eleocharis (el-ee-OK-ar-iss) (Info)
Species: dulcis (DUL-sis) (Info)

15 members have or want this plant for trade.

Ponds and Aquatics
Tropicals and Tender Perennials

12-18 in. (30-45 cm)

12-15 in. (30-38 cm)

USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:
Unknown - Tell us

Bloom Time:
Unknown - Tell us

Unknown - Tell us

Other details:
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:

Propagation Methods:
By dividing the rootball
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:
Unknown - Tell us

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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive AmyMorie On Jul 20, 2010, AmyMorie from Green Cove Springs, FL (Zone 9a) wrote:

Very easy to grow so far here in N Florida. Give plenty of sunlight.

Positive Michaelp On Nov 10, 2003, Michaelp from Glendale, UT (Zone 5a) wrote:

This needs the same conditions as Rice or water raised Taro-raised in good soil and shallow water,with high temperatures.The top has a tuft of smooth straight leaves--the bulb sends out a lot of runners that grow dark brown corms at the end ,about an inch or so in size--edible raw or cooked-sweet and crunchy,with a nutty flavor-- they can be raised in a kids plastic pool, in a few inches of water, Harvest is easy, in a container, All the fruit is right on the bottom of the pool next to the plastic, and easy to get to. If raised in a pond the nuts have to be dug for and are some work to find, [they grow good in FL.] they are invasive in warm areas, so it is best not to put them in a pond that can't be controled,


This plant has been said to grow in the following regions:

Jacksonville, Florida
Orange Springs, Florida

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