Why are my lilac buds not opening?

My lilac bushes have been covered with buds for about a month but the buds are not opening. Does anybody know what I need to do?

Why are my lilac buds not opening?
If the trees and buds still look healthy, then it is probably climatic. An early warming spell spurred budding, a prolonged cool spell or little rainfall retarded blooming. Up here in the Catskills of NY, I noticed buds on all the lilacs about 7 weeks ago, the pink and lavender lilacs are about 1/4 in bloom, and the French lilacs (deep purple) haven%26#039;t started blooming yet. If the buds look like they are dying, then you might have some root damage from excessive mowing over roots, digging up some roots, etc. Or, depending upon the age of the tree, natural demise of branches. Lilacs are rarely affected by pests, fungus, or other diseases, so I would not be overly concerned about that. In the future, feed your lilacs in Spring just as you see them coming out of dormancy. You can give them a little feed now -- auger holes about six inches deep about 12 inches apart from the edge of the tree%26#039;s drip line in towards the trunk and drop in plant food specifically designed for trees, and then broadcast a little superficially on the ground under the tree. If you are going to try and feed now, use about 1/4 the recommended amount or else you might damage roots or spur them into too much growth which will minimize flowering next year (Lilacs make up their mind whether to flower or not the year before). Lilacs like a lot of water, so if you haven%26#039;t had much rainfall, a good, deep thorough hosing might jumpstart blooming. I suspect a few more days and that heavenly scent will be wafting everywhere!
Reply:check for aphids, spider mites or powdery mildew, treat as needed



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