no buds for young lilacs

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no buds for young lilacs

Post by gardengirl16 » Sat May 17, 2014 12:58 pm

I have had young lilac trees planted for several years, they leaf out, but do not bud. What may be the problem?
Thanks for help .

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Re: no buds for young lilacs

Post by lorijones » Fri May 23, 2014 5:09 pm

There are several reasons why flowering plants don’t bloom, however, one of the leading reasons is lack of adequate light. Too much shade will affect the bloom on many plants including lilacs, Azalea, Rhododendron, Forsythia, Peonies, and Iris. Afternoon sun, between 11am and 5pm, is the hottest and brightest. Many sun-loving plants can thrive in all afternoon sun environments.
Sometimes excessive nitrogen and not enough phosphorus can keep lilacs from blooming. If your lilacs are in the lawn and are being fertilized with your high nitrogen lawn fertilizer, this could be the problem. They will grow beautiful foliage at the expense of the flowers. Fertilize them with Espoma Plant-tone and Rock Phosphate according tot he label directions. The Rock Phosphate will help with flower production. Keep high nitrogen lawn fertilizer away from the shrubs.
Improper pruning (bad timing) can also reduce or inhibit blooming. Lilacs set their flower buds in late summer so they should be pruned right after they finish blooming. Do not prune them after July to be safe.
Your lilacs may still be too young to bloom. If the above suggestions are not relevant, perhaps you just need to be more patient. I would still fertilize them with Plant-tone and Rock Phosphate.

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