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Water Celery, Water Parsley
Oenanthe javanica

Family: Apiaceae (ay-pee-AY-see-ee) (Info)
Genus: Oenanthe (oh-eh-NAN-thee) (Info)
Species: javanica (juh-VAHN-ih-kuh) (Info)

Category:

Perennials

Ponds and Aquatics

Height:

6-12 in. (15-30 cm)

12-18 in. (30-45 cm)

Spacing:

9-12 in. (22-30 cm)

Hardiness:

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

White/Near White

Bloom Time:

Unknown - Tell us

Foliage:

Grown for foliage

Herbaceous

Other details:

May be a noxious weed or invasive

Very high moisture needs; suitable for bogs and water gardens

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Regional

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

Huntsville, Alabama

Tuscaloosa, Alabama

Anchorage, Alaska

Merced, California

Chiefland, Florida

Crystal River, Florida

Fort Lauderdale, Florida

Fountain, Florida

Falmouth, Maine

Elkton, Maryland

Rosedale, Maryland

Point Pleasant Beach, New Jersey

Yonkers, New York

Cleveland, Ohio

Springfield, Ohio

Murfreesboro, Tennessee

Abilene, Texas

Humble, Texas

Vancouver, Washington

show all

Gardeners' Notes:

3
positives
1
neutral
1
negative
RatingContent
Neutral

On Jun 28, 2014, martenfisher from Crystal River, FL wrote:

I grow the variety ' Flamingo ' which is a variegated form. Because of the potential invasive nature of waterways and moist soil and ability to displace native wild plants as well as native animal food sources the state of Florida requires a permit for ownership. Otherwise the plant is illegal here.

If the owner of the plant assumes responsibility for the control of the plant it can be grown in ponds, aquaculture, aquaponics, or just grown in pots.

I grow mine in pots just fine. If they get too dry a pan can be set under the pots.

Negative

On Jan 11, 2011, MargaretChatham from Falls Church, VA wrote:

But then, I'm trying to preserve native ecosystem where possible. Also called Java dropwort, this plant has shown up unwanted in wild areas in Arlington & Fairfax Counties, Virginia, forming a monoculture in part-sun, wet places but surviving through drought times. In bloom Aug-Sept.

Positive

On Apr 6, 2006, melangemerchant from Adelaide
Australia (Zone 10a) wrote:

Great plant, very easy to grow in a pond or bog environment with enough sunshine. It has a tendancy to be a little invasive but is easily controlled as the runners are brittle and easily trimmed back by hand.

This plant is an important vegetable in Vietnam (rau can nuoc). It has a strong celery flavour, used on soups, salads and fresh dishes.

Positive

On Jul 2, 2004, lorimaute from Springfield, OH wrote:

I too have used this plant as part of my biofilter. It grows among lava rock and provides filtration for the water flowing down the water fall. The location only receives only about two hours of late afternoon filtered sun and the plant seems to be thriving(1st year).

Positive

On Aug 31, 2002, Terry from Murfreesboro, TN (Zone 7a) wrote:

This has been a great addition to the bog filter, where its roots have helped clean the pond water. I understand fish like to nibble on it, too but they can't get to mine. Maybe next year I'll have enough for two pots, and can put one directly in the pond.