• slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide

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

Related Content

Upcoming Appearances


Sept. 25, 2021
Green Bay Botanic Garden
25th Birthday Celebration

in-person

Sept. 30, 2021
Shade Gardening for Beauty and Pollinator Appeal 
Webinar

Oct. 9, 2021
Everything Hydrangeas
@ Sanger House Gardens

in-person

Oct. 15-17, 2021
NARI Milwaukee Home &
Remodeling Show

in-person

Oct. 20, 2021
Kid & Pet Friendly Houseplants
Webinar

Oct. 23, 2021
San Diego Fall Home & Garden Show
Del Mar, CA

Oct. 27, 2021
Pruning Tips for Shrubs
Webinar

Register today! Plus, watch Melinda's past webinars ON DEMAND
for a limited time.

Learn More

Book an Appearance

Learn More

Enter to win a $150
Corona Tools Gift Card

ENTER NOW