Lilac Bushes

Timming Lilac and Azalea

Anonymous added on May 22, 2014 | Answered

When is the best time to trim lilac and azalea bushes? Can you trim them low, as they are over 7 feet tall? I have two hydrangea bushes that are quite large but have never bloomed. How can I get them to bloom?

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Certified GKH Gardening Expert
Answered on May 22, 2014

I would not prune either of the plants back by more than 1/3 in any one year. Cutting back any further than that could harm the plants. These articles should help:, As for the hydrangea, you may be lacking phosphorus. If there is a lack of phosphorus in the soil, plants will have little to no blooms. You can either use a phosphorus rich fertilizer or add some bone meal to the soil. These articles may help as well:,

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