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Caryopteris

Botanical Name
Caryopteris x clandonensis
Hardiness
Zones 5 to 9
Height
2 to 4 feet
Width
2 to 4 feet
Flowers
Late summer: blue
Light
Full sun
Soil
Moist, well-drained
Planting & Care
  • Somewhat drought tolerant
  • NOT tolerant of poorly-drained soils or "wet feet" in winter
  • Roots are hardy to Zone 5, top growth is reliably hardy to Zone 7
  • Prune back in late winter, flowers on new growth
Problems
Crown rot in poorly drained soils, not reliably hardy
Varieties
  • Blue Mist - 3' mounded, light blue flowers
  • Longwood Blue - 4' mounded, violet-blue flowers
  • Worcester Gold - chartreuse foliage, blue flowers
  • Dark Knight - 18-24", deep bluish-purple flowers

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