This document printed from the University
of Illinois Extension Garden Column at http://www.extension.uiuc.edu/williamson/
Peonies
May 11, 2009
Ed Billingsley
County Extension Director, Williamson County and Interim County Extension Director, Jackson County
Williamson County Unit 1306 N Atchison Ave, Ste A
Marion, IL 62959
Phone: 618-993-3304
FAX: 618-997-1542 edb@illinois.edu
Peonies
Martha asked me to include garden peonies in this week's column. An old fashion flower found throughout southern Illinois at many old home sites is an often double flowered plant called peony. This early summer blooming plant adds great color to any garden and is still sold today.
Peonies are just now starting to break bud and flower. Peonies bloom for a very short time approximately one to two weeks but their foliage can be attractive all summer. The bloom period can be extended to around 8 weeks with different varieties. Contrary to popular belief peonies do not need ants to help it flower.
Ants are foraging on the sugar like substance secreted by the flowering plant. No, they are not usually harmful to the plant either. They can be a problem if the flowers are cut to be used fresh though when one brings them indoors.
Cutting flowers for fresh bouquets is believed to reduce future flowering. It is suggested that one should not remove more than one third of them to help prevent this.
Fall is the best time to plant this plant. Today there are many spectacular colors to choose from sold at local nurseries. One can plant them in the spring but more care is needed. Such as watering the plant through the summer to get it established.
Peonies grow best in full sun but the plants will tolerate light shade. Fertilize with ¼ cup per plant of 6-24-24 in the spring when the stems are 2-4 inches tall. Remember to remove flowers after fade to maintain root reserve and to prevent seed formation.
So consider adding this gorgeous flowering plant to your garden. This long-lived perennial comes in many colors. I believe one will please you.