Hibiscus Species, Sacramento Rose-Mallow, Delta Hibiscus, River Mallow, Woolly Rose Mallow, Crimson-
Hibiscuslasiocarpus

Synonym:Hibiscus californicus

Synonym:Hibiscus moscheutos subsp. lasiocarpos

Synonym:Hibiscus lasiocarpos

Height

Spacing
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)

Hardiness
24-36 in. (60-90 cm)

Sun Exposure
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)

Bloom Color
Full Sun

Bloom Time

Foliage
Rose/Mauve
Magenta (pink-purple)
White/Near White

Other details
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall

Propagation Methods
Herbaceous
Succulent

Seed Collecting

Soil pH requirements
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From herbaceous stem cuttings
From softwood cuttings
From seed; sow indoors before last frost
Scarify seed before sowing
By simple layering

Patent Information

Foliage Color
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds

Bloom Characteristics

Water Requirements

Where to Grow