Tropical Hibiscus 'Petra'

Hibiscus rosa-sinensis

Family: Malvaceae (mal-VAY-see-ee) (Info)
Genus: Hibiscus (hi-BIS-kus) (Info)
Species: rosa-sinensis (RO-sa-sy-NEN-sis) (Info)
Cultivar: Petra
Hybridized by Sinclair
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6-8 ft. (1.8-2.4 m)

8-10 ft. (2.4-3 m)


36-48 in. (90-120 cm)


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:

Full Sun

Bloom Color:

Magenta (Pink-Purple)

Bright Yellow

Bloom Time:

Blooms all year




Provides winter interest

Other details:

Unknown - Tell us

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:

Unknown - Tell us

Propagation Methods:

From woody stem cuttings

From softwood cuttings

From semi-hardwood cuttings

From hardwood cuttings

By grafting

By air layering

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Foliage Color:


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:

Suitable for growing in containers

This plant is suitable for growing indoors


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

Ellicott City, Maryland

Gardeners' Notes:


On Jan 13, 2006, Toxicodendron from Piedmont, MO (Zone 6a) wrote:

Petra originated as a sport from Erin Rachael. On the first day, the blooms look nearly identical (neon pink/orange). Then on days 2 and 3, Petra develops an orange to yellow outer petal, with a considerable amount of white in the next zone. Full sun is a must for best coloration. I had shade cloth on my greenhouse, and only after it's removal am I beginning to see the color change.
The plant's growing habit is identical to it's parent: good branching, high bud count, attractive glossy foliage with rather small leaves.
Blooms are small, about 5 inches across. They last 3 days on the plant, but only 1 day if picked. (In my experience so far.)