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PlantFiles: Desert Rosemallow
Hibiscus coulteri

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Family: Malvaceae (mal-VAY-see-ee) (Info)
Genus: Hibiscus (hi-BIS-kus) (Info)
Species: coulteri (kol-TER-ee-eye) (Info)

Synonym:Hibiscus coulteri var. brevipedunculatus

» View all varieties of Hibiscus

3 members have or want this plant for trade.

Height:
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

Spacing:
18-24 in. (45-60 cm)
24-36 in. (60-90 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)

Sun Exposure:
Sun to Partial Shade

Bloom Color:
Pale Yellow
Cream/Tan

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall

Foliage:
Deciduous
Herbaceous

Other details:
Drought-tolerant; suitable for xeriscaping
Suitable for growing in containers

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
From herbaceous stem cuttings
From seed; direct sow outdoors in fall
From seed; direct sow after last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored

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to view:

By apachetrail
Thumbnail #1 of Hibiscus coulteri by apachetrail

Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral htop On Nov 22, 2004, htop from San Antonio, TX (Zone 8b) wrote:

I have not grown this plant. Common names also include desert mallow, desert hibiscus, Coulter hibiscus, tulipn (tulip) and hibisco. It's a native plant that can be found narurally occuring from near Tucson to western Texas and northern Mexico. It requires little water and blooms in response to rain. It grows up to 3 feet tall and wide, has weak stems, and is sparsely branched. The 2 inch wide upper leaves are 3-lobed while the lower part of the plant's leaves are round or oval. The showy flowers are light yellow to white with a purple spot on each of the 5 petals. Described as a "shrubby perennial," it is herbaceous above but woody at the base. To encourage bushier growth, cut the stems back in winter and a couple of times during the growing season.

Regional...

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

Apache Junction, Arizona
Chandler, Arizona
Tucson, Arizona (2 reports)
Lafayette, Tennessee



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