How can I help my lilac tree produce more flowers?

How can I help my lilac tree produce more flowers?

A couple of things come to mind.

One, are you fertilizing with a product that is heavy with nitrogen? If so, that will grow leaves rather than flowers. A soil test will help determine what type of fertilizer you should buy. It may need more phosphorous – that’s the P in the NPK. Another problem could be pruning. If you are pruning late in the summer, you are cutting off the flower buds for the following year. I try to prune my lilacs by the first of June.

Thanks for writing!

Amy

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