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PlantFiles: Water Primrose, Marsh Purslane, Marsh Seedbox
Ludwigia palustris

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Family: Onagraceae (on-uh-GRAY-see-ee) (Info)
Genus: Ludwigia (lud-WIG-ee-uh) (Info)
Species: palustris (pal-US-triss) (Info)

Synonym:Isnardia palustris
Synonym:Ludwigia palustris var. americana
Synonym:Ludwigia palustris var. nana
Synonym:Ludwigia palustris var. pacifica

Category:
Perennials
Ponds and Aquatics

Height:
under 6 in. (15 cm)

Spacing:
Unknown - Tell us

Hardiness:
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
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)
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

Danger:
Unknown - Tell us

Bloom Color:
Chartreuse (Yellow-Green)

Bloom Time:
Mid Summer

Foliage:
Herbaceous
Bronze-Green

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:
From softwood cuttings

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By mygardens
Thumbnail #1 of Ludwigia palustris by mygardens

By mygardens
Thumbnail #2 of Ludwigia palustris by mygardens

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive mygardens On Jul 11, 2008, mygardens from Croton-on-Hudson, NY (Zone 6b) wrote:

This weed seemed to appear overnight in our pond. Probably it was too small to notice in previous years, but we noticed it this year and it has spread very quickly. I put a positive rating because it is a lovely plant and provides a very protective area for frogs, fish and other creatures that inhabit our pond and keep it balanced and clean.

Some references say that it produces flowers. I have not seen any yet. If it is invasive, I have heard that it is easy to pull and control. I am willing to try to mail some to anyone who will pay the postage.

Regional...

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

Bearsville, New York
Croton On Hudson, New York



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