There are few garden plants that are more spectacular than the tree peony. Tree peonies are beautiful garden centrepieces, and are easy to care for once established. But a tree peony that doesn't bloom can be alarming.
Peonies Take Time to Mature
One of the most common reasons that a tree peony has not bloomed is that it is not yet mature. Tree peonies usually don't bloom until their third or fourth year.
The Right Conditions
Tree peonies require the right conditions for blooming. Six hours of sunlight daily is ideal. Well-drained soil is essential--tree peonies don't like constantly moist soil. If your tree peony is grafted, the graft union must be at least 3 1/2 inches below soil.
Avoid using fertilisers that have high nitrogen levels. Amend your soil with compost, and top dress with fish, blood or bone meal in the fall. Use a slow release fertiliser high in phosphorus to help encourage flowering.
Room to Grow
Peonies need plenty of room to spread their roots. Give them plenty of space, keeping them away from trees, where they will have to compete for water and nutrients.
Tree Peony Care
Proper soil and light conditions are vital for flowering. Pruning a tree peony is not recommended until the plant is 10 years or older. According to Cricket Hill Garden, if you live in an area where spring is cold and damp, you should use a copper spray to prevent fungal infections.
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