Hibiscus Species, Sun Hibiscus, Wild Stock-Rose, Lemon Yellow Rose Mallow
Hibiscuscalyphyllus

Family: Malvaceae (mal-VAY-see-ee)
Genus: Hibiscus (hi-BIS-kus)
Species: calyphyllus (kal-ee-FIL-us)

Synonym:Hibiscus calycinus

Height

4-6 ft. (1.2-1.8 m)

Spacing

4-6 ft. (1.2-1.8 m)

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)

Sun Exposure

Sun to Partial Shade

Bloom Color

Pale Yellow
Green

Bloom Time

Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Blooms repeatedly

Foliage

Herbaceous
Smooth

Other details

Unknown

Propagation Methods

From herbaceous stem cuttings
From seed; direct sow after last frost

Seed Collecting

Allow seedheads to dry on plants; remove and collect seeds

Soil pH requirements

6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information

Non-patented

Foliage Color

Unknown

Bloom Characteristics

This plant is attractive to bees, butterflies and/or birds

Water Requirements

Average Water Needs; Water regularly; do not overwater

Where to Grow

Can be grown as an annual