• slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
Black-Spots-on-Peony-Leaves.jpg

Black Spots on Peony Leaves

Why are the leaves on my peony turning black?

Botrytis and phyphthora blights can cause purple-black spots on the stems and leaves of peonies. Sanitation is often enough to keep this disease in check. Remove and dispose of infested plant debris in the fall. Add a 2 inch layer of mulch over the soil surface to keep soil borne fungi away from the plant. Use chemicals as a last resort in cases where sanitation has not worked and the disease has been an on-going problem. Apply a fungicide, such as copper, labeled for controlling this disease on peonies. Spray plants as the tips emerge and every 14 days through mid-June.

Related

Upcoming Webinars & Appearances


March 22, 2023
FREE WEBINAR: 
In a Pot, You Can Grow Alot!
Register now


March 25, 2023
OCMGA Annual Garden Conference
Appleton, Wisconsin

March 26, 2023
REALTORS Home & Garden Show
West Allis, Wisconsin

March 29, 2023
FREE WEBINAR: 
Gardening Basics to Boost Your Success
Register now

April 1, 2023

REALTORS Home & Garden Show
West Allis, Wisconsin

April 5, 2023
FREE WEBINAR: 
What's New - Discover
New & Unique Plants!
Register now

April 11, 2023

Southwestern Indiana Master Gardener Association's 2023 Speaker Series
Darmstadt, Indiana
 

April 18, 2023
FREE WEBINAR: 
Growing a Bountiful Harvest even when Time, Space & Budget are Limited

Register now

April 20, 2023
SC Johnson Golden Rondelle Theater Speaker Series
Racine, WI
Register now

April 22, 2023
Pasquesi Home & Gardens
Lake Bluff, IL

April 25, 2023
Frederik Meijer Gardens
Grand Rapids, MI

Watch Melinda's past webinars ON DEMAND

Learn More

Book an Appearance

Learn More

Enter to Win Melinda's Container Gardening Tips & Techniques DVD set

ENTER NOW