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Ageratum

Botanical Name
Ageratum houstonianum
Hardiness
Half hardy annual
Height
6 to 15 inches
Width
6 to 12 inches
Flowers
Summer till frost: blue, lavender, white, pink
Light
Part shade to full sun
Soil
Well-drained
Planting & Care
  • Space compact plants 6 inches apart, taller varieties 9 inches apart
Problems
Powdery mildew in excess shade, root rot in poorly drained soils
Varieties
  • Hawaii Series - 6" compact; flowers of blue, royal blue, and white
  • Blue Danube - 7" and uniform
  • Swing Pink - 6-8" pink
  • Blue Horizon - 18", weather resistant flowers, long stems good for cutting
  • LeiLani Blue - 14-16" by 12"
  • High Tide - 24", dense, self cleaning

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