TYPES OF PEONIESCompare peony types, including tree peonies, herbaceous peonies and Itoh peonies
The American Peony Society has over 6500 cultivars in their registry. Within all this variety, there are three common types of peonies: tree peonies, herbaceous peonies and Itoh peonies. Here’s a comparison:
Your climate may dictate which type of peony you should grow. Use the following information to determine which peonies will grow best in your garden.
- Herbaceous peonies need a certain amount of cold weather to flower. Southern gardeners should favor early bloomers.
- Tree peonies don’t demand below-freezing temperatures, but do require a dormancy period. In regions where winter is a nonevent, dormancy can be forced by trimming off the leaves.
- Intersectional peonies, which die back to the ground when winter comes, can be hardier than tree peonies and are more tolerant of heat and humidity.
Which type of peony blooms the longest?
If you're looking for an extended bloom season, Intersectional peonies can produce flowers for a period of 3 to 4 weeks, with as many as 30 to 50 blossoms per plant. The blooms of a tree peony, if protected from the hot afternoon sun, can last as long as 14 days. Herbaceous peonies bloom for an average of 7-10 days depending on the cultivar.
Peonies are further classified by their flower form. Some types of peonies have a single ring of petals, while other types have multiple rows of petals. Here is a list of the different types of flower forms:
- Full double
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