How to Grow Peonies

Peonies bring timeless charm to any garden with their lush, often fragrant blooms in shades of purple, red, white, and yellow. Blooming in late spring to early summer, these long-lived sun perennials are easy to grow and adapt beautifully to modern garden designs. Peonies thrive in slightly acidic soil (pH 6.5–7.0) with good drainage and prefer full to partial sun. They make stunning focal points for borders, walkways, and hedges—and their large flowers are excellent for cutting and indoor arrangements. Knowing how to care for peonies from planting through bloom will help you keep plants vigorous and floriferous. If you’re exploring how to grow peonies for the first time, you’ll find they reward steady peony care with years of dependable flowers.

How to Plant Peonies

Set peony roots into the soil at a depth of 2–3 cm, making sure the eyes are facing the skies, and space them 90–120 cm apart. Adding organic matter to the soil is always useful and advisable. Gardeners in the South looking to plant early-blooming peonies should wait until fall end, set the roots at a depth of 1 inch under the soil, and remember to provide them some cover against the sun. Pack the soil firmly around the roots and water well. Check on the plants regularly as they develop and water whenever the soil appears to be drying up. Successful peony care begins with proper planting: set the eyes just below the surface, give each plant generous spacing, and keep the soil evenly moist.

Patience is key when it comes to growing peonies. They may not bloom the first spring after planting. It may take a year for them to settle in. By their third spring they are maturing and producing an abundance of flowers. Caring for peonies in their first two seasons focuses on root establishment and steady watering.

When to Plant Peony Roots

Fall is the ideal time of the year for planting peonies. Newly planted bareroot peonies will establish new feeder roots when you plant them in the fall. The winter freezing temperatures will not affect the roots; peonies like the cold. Peonies planted in the fall will establish much faster than spring-planted ones. In warmer regions, late fall is still best; in colder zones, early to mid fall works well. Understanding when to plant peonies is a key part of how to grow peonies successfully.

How to Divide Peonies

Peonies rarely require division and don't like root disturbance. You can enjoy your peony plants in the same spot for decades, but you can move or divide them if necessary. Digging up peonies is best done after the foliage begins to die back in fall or in early spring. Dividing peonies in fall aligns with dormancy and reduces stress. Lever the peony plant out of the ground with a fork or spade. Shake the plants gently to remove the soil from the roots. Locate the buds (eyes) on the roots and cut apart the clump with a sharp knife or sharp spade, ensuring each section contains two to five buds. When planting the divisions, the eyes of the root should be planted facing upward, no more than 1–3 cm below the soil surface.

Fertilizing Peonies

For best results, peonies should be fed in spring, and again halfway through the growing season. Use a low nitrogen fertilizer (like a 5-10-5 food for bulbs and perennials). Do the first feeding when the stems are about 5–8 cm high. Peonies that are over-fertilized often develop poorly and produce few blooms; a fertilizer with too much nitrogen is particularly harmful. Peonies require extra potassium for stem strength and disease resistance. As part of caring for peonies, light feeding and good soil health usually outperform heavy fertilization. When growing peonies year after year, integrate compost and mulch to support slow, steady nutrition as part of overall peony care.

Peony Flower Types

The American Peony Society recognizes six forms of peonies:

• Double – Consists mostly of petals, almost no stamens.
• Semi-double – Five or more outer guard petals with a center of smaller inner petals.
• Bomb – The stamens are completely transformed into inner petals, narrower than the outer guard petals, forming a sculpted ball atop a shallow bowl. 
•  Anemone – Stamens are transformed into petaloids—small, narrow petals in the center—surrounded by the outer guard petals.
• Japanese – Five or more guard petals arranged around a large center filled with carpels and stamens; stamens are transformed into stamenoids that have a lumpy texture and thicker tissue that prevents shedding pollen.
• Single – Five or more guard petals arranged around the carpels and pollen-bearing stamens.

What is an Itoh Peony?

An Itoh Peony (or Intersectional Peony) is a cross between herbaceous and tree peonies. It has a woody base and stems that are more compact and sturdier than bush (herbaceous) peonies. The large, mostly semi-double flowers sit right on top of the foliage. They usually bloom after the bush peonies. Understanding how to care for peonies of different types, including Itoh hybrids, will help you tailor peony care to their bloom time and habit.

Cutting Peony Flowers for Bouquets

AHarvest peony flowers for bouquets when the buds show the first signs of opening. If they're still as hard and round as a bullet they will not open fully. Cut the stems at an angle and place them promptly in fresh, cold water. This practice fits well with how to grow peonies for cut flowers: healthy plants, timely harvest, and clean tools.

When starting a new peony bed, pick a bright, well-drained location, enrich the soil, and set the buds just below the surface. Planting is best done in fall, when plants are naturally dormant. To grow robust peonies, pair correct planting depth with consistent moisture, light fertilizing, and routine seasonal cleanup—simple care habits that help peonies flourish for many years.