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

Cosmos

Botanical Name
Cosmos bipinnatus
Hardiness
Half hardy annual
Height
12 to 72 inches
Width
12 to 24 inches
Flowers
Summer till frost: red, rose, pink, purple
Light
Full sun
Soil
Well-drained
Planting & Care
  • Space plants 12 inches apart
  • Avoid over fertilizing - results in no blooms and floppy plants
  • Heat and drought tolerant
Problems
Aphids, bacterial wilt, aster yellows, Japanese beetles
Varieties
  • Sea Shells - fluted petals, 36"
  • Sonota - dwarf, 20"

Related Content

Upcoming Live Events
& Webinars


August 1-11, 2024
Wisconsin State Fair

West Allis, WI

August 1, 2024
Ladies Night Out

Ebert's Greenhouse Village
Ixonia, WI

Sept. 5, 2024
Year-round Perennial Garden Maintenance

Wauwatosa Public Library
Wauwatosa, WI

Sept. 7, 2024
Fall Planting for a Beautiful Landscape

Pasquesi Home & Gardens
Lake Bluff, IL

Sept. 21, 2024
Preparing Your Garden for Winter

Ebert's Greenhouse Village
Ixonia, WI

WATCH ON-DEMAND WEBINARS

Learn More

Book an Appearance

Learn More

Enter to Win The Great Courses' Make Your Trees and Shrubs Thrive DVD set

ENTER NOW