Ludwigia Species, Mexican Primrose Willow, Shrubby Water Primrose
Ludwigiaoctovalvis

Family: Onagraceae (on-uh-GRAY-see-ee)
Genus: Ludwigia (lud-WIG-ee-uh)
Species: octovalvis (ok-toh-VAL-vis)

Category
Ponds and Aquatics
Tropicals and Tender Perennials

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

Sun Exposure
Sun to Partial Shade

Foliage
Deciduous
Herbaceous
Smooth

Foliage Color

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 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)

Where to Grow

Danger

Bloom Color
Bright Yellow

Bloom Characteristics

Bloom Size

Bloom Time
Mid Summer
Late Summer/Early Fall
Mid Fall

Other details
May be a noxious weed or invasive

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information
Non-patented

Propagation Methods
From seed; direct sow outdoors in fall

Seed Collecting
Allow pods to dry on plant; break open to collect seeds