GROW WITH CONFIDENCE

We divide peonies from 2–4-year-old plants. A good start begins with the right planting depth, freely draining soil and care suited to your climate.

The essentials, wherever you garden

• Light and space. Choose a sunny, airy location with room for the mature plant. Light afternoon shade can help in hot sites.
• Drainage first. Avoid places where water collects. Improve the planting area with well-rotted compost as needed; keep concentrated fertilizer away from roots.
• Water by need. Water well after planting. During establishment and dry spells, check soil moisture and water the root zone when needed. Avoid constantly wet soil and overhead watering.

Plant according to peony type

Herbaceous peonies: Plant with the eyes facing upward, generally 1–2 inches below the finished soil surface. Recheck after watering and settling; planting too deeply can reduce flowering.

Itoh (intersectional) peonies: Follow the planting depth supplied with your division; the crown and buds may be arranged differently from an herbaceous root.

Tree peonies: These are woody plants. Grafted plants need a deeper planting position than herbaceous peonies; follow the instructions for your plant. Keep living woody stems through winter.

What changes with your climate?

Most care is shared. Adjust for winter cold, summer heat and local conditions rather than repeating a separate care routine for every zone.

Cold winters · Zones 3–5

For herbaceous peonies, use the deeper end of the 1–2-inch planting range. Newly planted roots may benefit from temporary winter mulch after the ground freezes to reduce frost heaving. Remove it as spring growth begins so the crown does not stay buried.

Milder winters and hotter summers · Zones 6–8

For herbaceous peonies, favor the shallower end of that range. Check moisture during hot, dry weather and consider light afternoon shade. In warmer Zone 8 gardens, cultivar choice and sufficient winter chilling matter especially; earlier-flowering varieties may be better candidates.

Zone 2, Zone 9+ or unusual local conditions

Ask about the specific cultivar before ordering. A zone number alone does not describe summer heat, winter chilling, drainage or exposure, and this guide does not imply that every peony suits every zone.

A simple seasonal routine

• Spring: Clear winter protection from emerging shoots, check planting depth and add supports where needed.
• During growth: Water according to soil conditions, remove spent blooms and leave plenty of healthy foliage when cutting flowers.
• Autumn: Remove dead herbaceous foliage and fallen leaves. Keep healthy woody stems on tree peonies. Dispose of diseased material away from the planting.

New divisions need time to establish; flowering and growth vary with cultivar and conditions.

Still have questions?

Leave your email and tell us your peony type, location and question using our contact form. We will use your email to reply to your inquiry.

Further reading: American Peony Society: basic care · Illinois Extension: peonies