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Rose of Sharon
Hibiscus syriacus 'Russian Violet'

Family: Malvaceae (mal-VAY-see-ee) (Info)
Genus: Hibiscus (hi-BIS-kus) (Info)
Species: syriacus (seer-ee-AK-us) (Info)
Cultivar: Russian Violet
» View all varieties of Hibiscus

Height:

8-10 ft. (2.4-3 m)

Spacing:

36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)

Hardiness:

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)

Sun Exposure:

Sun to Partial Shade

Bloom Color:

Red

Violet/Lavender

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Unknown - Tell us

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Sep 6, 2007, macybee from Deer Park, TX (Zone 9a) wrote:

Botanica Encyclopedia:
This upright, deciduous shrub (evergreen in warmer climates) from temperate Asia is the most frost hardy of the genus. It flowers freely in summer in varying shades of white, pink, soft red, mauve and violet blue. The single, semi-double flowers are bell-shaped and are borne in the axils of the leaves. It has small, hairless leaves and grows to 12' tall with a spread of 3-6'. Prune to shape in the first 2 years of growth, trimming lightly thereafter to maintain compact form.