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
Categories
Upcoming Live Events
& Webinars
Jan. 18, 2025
Garden Visions
Wausau, WI and Virtual
Feb. 7-9, 2025
PBS Wisconsin's
Garden & Green Living Expo
Madison, WI
Feb. 12, 2025
FREE WEBINAR:
Organic Insect Pest Management for Vegetable and Flower Gardens
Register here
Feb. 14-16, 2025
NARI Milwaukee Spring Home Improvement Show
West Allis, WI
Feb. 19, 2025
FREE WEBINAR:
Strategies for Managing Invasive Plants
Register here
Feb. 26, 2025
FREE WEBINAR:
Create a Beautiful Shade Garden
Register here
March 12, 2025
FREE WEBINAR:
Grow Pollinator-friendly Spring and Summer Flowering Bulbs
Register here
March 19, 2025
FREE WEBINAR:
Be a Waterwise Gardener
Register here
March 26, 2025
FREE WEBINAR:
Succession Planting & Crop Rotation
Register here
WATCH ON-DEMAND WEBINARS
Learn More
Book an Appearance
Enter to Win Melinda's Food Gardening for Everyone DVD set
