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Hibiscus syriacus

Previously known as:

  • Althaea frutex
  • Hibiscus acerifolius
  • Ketmia syriaca
Description

Drought, wet soil, and air pollution tolerant; late to leaf out in spring; prefers hot weather; spring pruning will increase flower size; flowers on new growth; moderate to rapid growth rate.  This plant is moderately salt tolerant.

Sun to partial shade; prefers moist, well-drained soil but tolerates wet soil.

Insects, Diseases, and Other Plant Problems: Rose of Sharon has been reported to be invasive in some states, including Virginia and Kentucky

Quick ID Hints:

  • large, tropical looking, 5-petaled flowers
  • erect, spreading habit with upright branches
  • 3-lobed leaves are 2-4 inches long
  • simple, alternate, coarsely toothed leaves
  • 5-valved, dehiscent capsule persists thru winter

8-12' high and 6-10' wide deciduous shrub, erect, spreading habit with upright branches. 

Full sun to partial shade; tolerant of neglect; pH adaptable; does best in moist, well-drained soils but is tolerant of any but extremely wet or dry; prefers hot weather. 

Good for late season flowering; valued for large, tropical looking flowers; easily transplanted; used for groupings, masses, shrub borders; pest and disease susceptible.

Cultivars / Varieties:
Tags:
#bees#hummingbirds#deciduous#small tree#heat tolerant#drought tolerant#wildlife plant#weedy#nectar plant#salt tolerant#tsc#air pollution tolerant#playground#hedges#wet sites#specialized bees#ncemgva2018#fast growing#cpp#children's garden#dragonflies#pollinator plant#fantz#butterfly friendly
 
Cultivars / Varieties:
Tags:
#bees#hummingbirds#deciduous#small tree#heat tolerant#drought tolerant#wildlife plant#weedy#nectar plant#salt tolerant#tsc#air pollution tolerant#playground#hedges#wet sites#specialized bees#ncemgva2018#fast growing#cpp#children's garden#dragonflies#pollinator plant#fantz#butterfly friendly
  • Attributes:
    Genus:
    Hibiscus
    Species:
    syriacus
    Family:
    Malvaceae
    Life Cycle:
    Woody
    Country Or Region Of Origin:
    S. China, Taiwan
    Wildlife Value:
    Attractive to hummingbirds. Members of the genus Hibiscus support the following specialized bee: Ptilothrix bombiformis.
    Play Value:
    Attractive Flowers
    Attracts Pollinators
    Wildlife Food Source
    Particularly Resistant To (Insects/Diseases/Other Problems):
    Mildly resistant to damage by deer, moderate salt tolerance.
    Dimensions:
    Height: 8 ft. 0 in. - 12 ft. 0 in.
    Width: 6 ft. 0 in. - 10 ft. 0 in.
  • Whole Plant Traits:
    Plant Type:
    Shrub
    Tree
    Leaf Characteristics:
    Deciduous
    Habit/Form:
    Erect
    Multi-stemmed
    Growth Rate:
    Rapid
    Texture:
    Medium
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Drainage:
    Good Drainage
    Moist
    Occasionally Dry
    Occasionally Wet
    Available Space To Plant:
    6-feet-12 feet
    Usda Plant Hardiness Zone:
    5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
  • Fruit:
    Fruit Color:
    Brown/Copper
    Display/Harvest Time:
    Fall
    Fruit Type:
    Capsule
    Fruit Description:
    A 5-valved dehiscent capsule, 3/4" long and wide, brown; persists through winter.
  • Flowers:
    Flower Color:
    Gold/Yellow
    Pink
    Purple/Lavender
    White
    Flower Value To Gardener:
    Showy
    Flower Bloom Time:
    Spring
    Summer
    Flower Size:
    1-3 inches
    Flower Description:
    2 to 4 in. flowers with 5 crepe-like petals; red, white, violet, purple, two-toned; single or double; last for one day. Campanulate; single or double, solitary.
  • Leaves:
    Leaf Characteristics:
    Deciduous
    Leaf Color:
    Green
    Deciduous Leaf Fall Color:
    Gold/Yellow
    Leaf Type:
    Simple
    Leaf Arrangement:
    Alternate
    Hairs Present:
    No
    Leaf Length:
    3-6 inches
    Leaf Description:
    Alternate, simple medium to dark green leaves; 2 to 4 in. long; coarsely toothed; modest yellow fall color. Alternate, simple, 3-lobed, 2-4" long, coarsely toothed, glabrous, can be shiny.
  • Stem:
    Stem Is Aromatic:
    No
  • Landscape:
    Landscape Location:
    Recreational Play Area
    Landscape Theme:
    Butterfly Garden
    Children's Garden
    Pollinator Garden
    Design Feature:
    Flowering Tree
    Hedge
    Attracts:
    Butterflies
    Hummingbirds
    Pollinators
    Specialized Bees
    Resistance To Challenges:
    Deer
    Heat
    Salt
    Wet Soil
    Problems:
    Weedy