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Hibiscus syriacus

Shrub Althea, Rose-of-Sharon

Pronunciation
HI-bis-kus si-ri-ay-kus
Family
Genus
Nativity

China, India

Growth Habit

Shrub or small tree, very erect but occasionally spreading, with numerous upright branches.

Hardiness
5
Culture

Move container-grown, balled-and-burlapped or bare root as a small plant (5 feet or less); transplants well; grows in about any soil except those which are extremely wet or dry; does best in moist, well-drained soils which have been supplemented with peat moss, leaf mold or compost; pH adaptable; full sun or partial shade; prefers hot weather.

Landscape Use

Valuable for late season flowers, groupings, masses, shrub borders but does not deserve speciment use; has and can be used for screening and hedges.

Foliage

Palmately-veined, coarsely-toothed, three-lobed, medium green leaves (to 4 inches long) are attractive during the growing season but produce no fall color.

Buds

Buds are not evident, their position usually occupied by the scars of fallen inflorescences or branch vestiges.

Bark

Glabrescent, gray.

Flower

Perfect, 5-petaled, white to red or violet, or combinations, single and double, short-stalked, broad campanulate, 2 to 4 inches across, July, August through September.

Fruit

Dehiscent capsule, .75 inches long and wide when open, brown, 5-valved and persisting through winter.

Propagation

Seed, cuttings.

Pests
None serious.
Cultivars

'Agnes' - Double, large, flat, mauve-purple flowers.

'Amplissimus' - Double, red.

'Ardens' - Double, rose-purple.

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