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Tall Blue Planet

Photos are representative and may not match your specific variety.

Tall Blue Planet

Flower

Ageratum houstonianum

  • Partial sun
  • Zones 2–11
  • 80 days to maturity
  • Flowers
  • 12" spacing
  • High water
  • Annual
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  • Overview

    Tight blue flower clusters. Use as a classic filler for mixed bouquets or plant to attract bees and butterflies to your garden. Ageratum is also known as flossflower or blue mink.

  • Planting

    Start indoors 6-8 weeks before last frost, transplant after frost danger

  • Growing

    Sun: partial. Water: high. Soil: Well-drained soil, tolerates average fertility. Space plants 12" apart. Germination: 7-14 days.

  • Pests & diseases

    Common pests: Whiteflies, spider mites, aphids. Common diseases: Powdery mildew, root rot in wet conditions.