Botanical Name: Hibiscus syriacus
Common Name: Rose of Sharon, Shrub althea
Type of Plant: dicot: shrub
Character deciduous
 
Habit of Growth:
Overall Shape upright and compact when young, becoming loose and open with age, can become tree-like with pruning
Height 8-12'
Spread 8-12'
Growth Rate moderate
 
Environment:
Exposure outdoors full sun to partial shade
Soil prefers a moist loam; tolerates poorer soil than H. rosa-sin.
Hardiness hardy (zones 2-24); thrives in cold climates
 
Morphology:
Leaves simple palmate, rhomboid to ovate shape 3-lobed, coarsely-toothed; prominent vein pattern
Flowers single or double flowers to 3" across white, pink, purple solitary on stem
Fruit small brown capsule – 5 valved 1/2" across
 
Propagation:
hardwood cuttings, grafting, seed
 
Usage:
shrub borders, for late season color in mass plantings, background plant; widely used in Eastern United States
 
Landscape Care:
Watering moderate watering, tolerates drought when established
Fertilizing balanced acid fertilizer in spring
Pruning head back previous season's growth to 2 buds in winter
Pests/Diseases giant whitefly, whitefly, aphid, foliar nematode
Special Conditions/Other
 
Origin: East Asia
Family: Malvaceae

Notes:
 
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