Six-petal Primrose Willow, Water Primrose

Ludwigiahexapetala

Family
Onagraceae (on-uh-GRAY-see-ee)
Genus
Ludwigia (lud-WIG-ee-uh)
Species
hexapetala (heks-uh-PET-uh-luh)
Synonym
Ludwigia grandiflora
Ludwigia uruguayensis
Jussiaea grandiflora
Sun Exposure
Sun to Partial Shade
Foliage
Smooth
Height
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Spacing
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Hardiness
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)
Bloom Color
Bright Yellow
Bloom Time
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Ponds and Aquatics
Tropicals and Tender Perennials
Water Requirements
Very high moisture needs; suitable for bogs and water gardens
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
Patent Information
Propagation Methods
From seed; direct sow outdoors in fall
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Santa Fe, Texas

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Gardener's Notes:

0
positive
0
neutral
1
negative
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C
ROSLINDALE, MA | March 2016 | negative

This species has been declared a noxious weed or invasive species in four states. It is naturalized in 22 states, mostly on the west coas...Read More

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