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The Plant Guide

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‘Diana’ Rose of Sharon

Hibiscus syriacus 'Diana'

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'Diana' has deep green foliage and large, pure white flowers that bloom from mid- to late summer. Unlike some other roses of Sharon, its flowers remain open at night. It requires little maintenance and, once established, will tolerate extreme heat, drought, and poor soil. -Judith Ireland, Regional Reports: Northeast, Fine Gardening issue #122

Noteworthy CharacteristicsAs a mature shrub, this plant can be trained into a small tree.

CareThis plant's flowers bloom on new growth, so you should prune it at the end of winter.

PropagationFrom cuttings.

ProblemsLeaf spots, Japanese beetles, blight, rust, aphids, scale, whiteflies, and canker.

  • Genus : Hibiscus
  • Zones : 5, 6, 7, 8, 9
  • Plant Height : 6 to 10 feet
  • Plant Width : 6 to 10 feet
  • Bloom Time : Early Fall, Fall, Late Summer, Summer
  • Growth Rate : Fast, Moderate
  • Light : Full Sun to Partial Shade
  • Maintenance : Low
  • Moisture : Medium Moisture
  • Plant Type : Shrubs
  • Plant Seasonal Interest : Summer Interest
  • Flower Color : White
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