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Tropical Hibiscus
Hibiscus rosa-sinensis 'Gwen Mary'

Family: Malvaceae (mal-VAY-see-ee) (Info)
Genus: Hibiscus (hi-BIS-kus) (Info)
Species: rosa-sinensis (RO-sa-sy-NEN-sis) (Info)
Cultivar: Gwen Mary
Hybridized by C. Black
Registered or introduced: 2006
» View all varieties of Hibiscus

Height:

4-6 ft. (1.2-1.8 m)

Spacing:

36-48 in. (90-120 cm)

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:

Full Sun

Bloom Color:

Pink

Bloom Time:

Blooms repeatedly

Foliage:

Evergreen

Smooth-Textured

Veined

Other details:

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

This plant is suitable for growing indoors

Average Water Needs; Water regularly; do not overwater

Provides winter interest

Suitable for growing in containers

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Non-patented

Propagation Methods:

From herbaceous stem cuttings

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

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Feb 18, 2009, Joan from Belfield, ND (Zone 4a) wrote:

Note courtesy of Charles Black, hybridizer (Posted with permission, on his behalf)

Gwen Mary blooms prolifically with a vivid deep pink 5-6" flower that really stands out. It's an Australian import that grows on a strong, upright, medium-sized bush. It's a wonderful landscape plant that is used extensively in Australia. It tolerates sun very well. Released at HVH in 2006.