In the Oshawa peony garden, peonies are in bloom for about five weeks. The volume of blooms starts slowly and builds as the season progresses. This article provides information about when the peonies are in bloom. The exact dates will vary with the spring weather. If early May is warm the blooms will begin earlier and if it is cooler, the blooms are later. The suggested dates shown here are approximate.
By May 20, there will be blooms in the garden. Only a small number of plants bloom in May but they are some of the nicest peonies. Typically Early Windflower and Nosegay are the first to bloom. These can be recommended as fine peonies which might provide an excellent start to your home garden peony display.
Late May brings into bloom the hybrid peonies based on the tenufolia peony species. These plants have very fine, almost needle like leaves. Good examples are Smoothii, Early Scout and Laddie. Other fine peonies that bloom in May include Roselette, Audrey and Rose Crystal.
Oshawa Valley Botanical Gardens contain over 40 tree peonies. These are planted along both side of the decorative fence that defines the western peony garden boundary. They have magnificent large blooms with varied colours over a relatively short period of time. A visit to the garden when the tree peonies are in bloom will be a delight. Tree peonies should be blooming during the last week in May and the first week in June.
Remember that when you visit the tree peonies, there will be some interesting peonies blooming in the rest of the garden.
The volume of bloom increases during this week. About fifteen percent of the plants start to bloom. To accompany the tree peonies, some of the finest hybrid peonies begin to bloom. These include the Coral Fay, Jewel, Paula Fay, Red Charm and Illini Warrior. Hybrid peonies have more intense, clear colours in a range of pinks and reds.
Almost fifty percent of the plants start to bloom in the second week. This is a week in transition from the hybrid to the lactiflora peonies. The latter are what have grown in almost all gardens for the last century.
This is the week for the coral hybrids - Coral Sunset, Coral Charm and Coral N'Gold.
There are still many fine hybrid peonies such as Cytherea, America and Raspberry Charm. As the week progresses, you will see the lovely garden single blooms from Sea Shell, Krinkled White and Pink Princess. These are excellent plants in a perennial border.
Before the week is over, many lactifloras will bloom. They will include Kansas, Dainty, Do Tell and Minnie Shaylor.
Itoh hybrids are the newest form of peony. They are created from crossing tree peonies with herbaceous ones. The Itoh hybrids Garden Treasure and Pastel Splendor will bloom during this week.
This week has a large volume of bloom as the lactifloras take over the garden. Some Itohs continue to bloom but the hybrids are finished. Almost one third of the peonies will begin blooming in this week. This is slightly less than during the second week but still represents a glorious display.
A special thank you to Michael Denny for a most informative article.