How to Grow Peonies: Peony Care Tips
January 29, 2019
One of the most magnificent mainstays of the garden is the common herbaceous peony (Paeonia lactiflora). While September is the preferred time to plant peonies, it’s fine to plant container-grown peonies anytime.
Showy and fragrant, peonies will make excellent cut flowers—and the plants are so long-lived that it is commonly said that peonies will outlive the gardeners who plant them! Even when they are not in bloom their dark green, glossy foliage and shrub-like appearance make them handsome focal points in the garden.
Plant Peonies Any Time
September is the best time to divide or plant bare root peonies since they are dormant in the fall but if you are looking longingly at your neighbor’s peonies and wishing you had some right now, container-grown peonies can be planted at any time.
Many nurseries offer early, midseason, and late blooming varieties, making it possible for you to stretch out the peony season over many weeks. There are 6 flower types to choose from: anemone, single, Japanese, semi-double, double, and bomb. The colors range from pristine white to pink, peach, yellow, magenta, deep reds, and even bi-colors.
Fragrances vary as well—some plants such as ‘Festiva Maxima’ and ‘Duchesse de Nemours’ have intoxicating rose-like scents while others are lemony or have no scent at all. If fragrance is important to you, give them the sniff test before you buy.
Planting Peonies Properly
- In choosing a spot for your new peony to grow, make sure it will get lots of light—6 to 8 hours of full sun is best for producing a profusion of flowers but it will still perform well in a location with morning sun and light afternoon shade.
- Peonies plants will need well-drained, neutral soil away from competing tree roots. This plant will grow to cover an area about 3 feet in diameter so make sure you give it plenty of room. Once planted it can remain undisturbed for many years as long as it is flowering well.
- Planting depth is critical; if planted too deeply it won’t bloom. When planting a container-grown peony, cover it no deeper than it grew in the pot.
- Try not to disturb the rootball or damage the feeder roots. A newly planted peony can take up to 3 years to reach its full flowering potential but once established, this plant likes to be left alone.
- Peonies plants are virtually pest-free; deer and rabbits don’t like its bitter taste.
See ants on peonies? Ants love to harvest the sweet sap covering the flowers buds but are harmless and may even keep other insects away.
Supporting Peony Plants
Due to the heavy flowers and brittle stems of the larger flowering varieties, it is best to give your plant some kind of support. Peony rings were invented for just this purpose or you can use a wire tomato cage. Placing the support around the plants early in spring is ideal so you don’t accidently pierce the crown.
The plant will grow up through the support and eventually hide the wire.
Many of the newer hybrids are being developed with stronger stems to eliminate this problem and single, anemone, or semi-double flowering varieties usually don’t need staking.
If you share my passion for peonies, get out there and enjoy them! Pick lots of of bouquets to perfume the house! Like all good things, peony blossoms won’t last forever and you don’t want to miss a minute!
About This Blog
Get inspired by Robin Sweetser’s backyard gardening tips and tricks. Robin has been a contributor to The Old Farmer’s Almanac and the All-Seasons Garden Guide for many years. She and her partner Tom have a small greenhouse business and also sell plants, cut flowers, and vegetables at their local Farmer’s Market.