Why is the lilac tree in my yard not producing flowers?

It used to have flowers, I live an duplex and knew the ppl who lived here a few years ago and I remember them having lilacs on the tree. I have lived here for 2 years now and nothing! I have not noticed any insects or anything on it. Any help would be great. Thanks!

Why is the lilac tree in my yard not producing flowers?
depending upon where you live -- there may have been a late spring frost that killed off any buds that were going to bloom this year or even last year.
Reply:If it is really tall, then eventually the lilacs no longer bloom. It happened to my parents%26#039; lilacs when I was growing up.
Reply:My guess is that something bigger is shading out your lilac. They need sun in order to bloom. Take a look around and maybe there is some branches or something that you can trim to give your lilac a little more sun.





The other possibility is that your lilac is getting trimmed at the wrong time of the year or too much. Lilacs set their buds in the early summer and if you trim them after the buds have been set, you have cut off the flowers for the following spring.





Final possibility is that your soil is too acidic, but if you have seen them bloom before, that isn%26#039;t very likely.





Good luck for next spring!
Reply:this was the first year mine didnt have flowers and i have 4 of them in a row in my yard. i live in indiana and we had a warm spell in feb and i think it made my bushes not bloom right this year. hopefully it will change. i just love them.
Reply:Here is what I found: (and I needed this info too)


If you have an established lilac that fails to bloom, one common and often overlooked cause of bloom failure is fertilizer. Most people grow lilacs out in the open lawn. Any lawn fertilizer you place on the lawn is going to reach the lilac bush. You might have the greenest, most lush lilac around, but all that nitrogen that your lawn craves might be causing your lilac to expend energy on foliage rather than blooms. If you fertilize your lawn, avoid the area around the lilacs. If you hire a lawn service, inform them to not fertilize within the drip line of the lilac bushes.





Lack of sunlight might also be another cause. Lilacs require a minimum of six hours of sunlight to perform their best. If you are growing them against the garage near a north facing wall, or in the shadows, you just aren%26#039;t going to get many blooms.





Improper pruning can destroy a lilac display. Snap off all the dead blooms within a week to ten days of blooming. Lilacs set next year%26#039;s buds shortly after flowering, so you don%26#039;t want to delay in removing spent blooms. Pruning to remove suckers and to maintain shape and growth should also be done after bloom time. Stretch this renovation pruning over a three year period so you don%26#039;t sacrifice blooms by whacking away at your shrubs all at once. Take a third of the oldest branches out the first year and any suckers that you might see. Do the same the second and third years.





It is a myth that lilacs will do well in poor or heavy soil. Yes, they will grow in clay, but only if it drains well. Lilacs area at their best in a soil that is slightly alkaline or neutral and high in organic matter. They benefit from mulching and do appreciate a fertilizer higher in phosphorus. This is the second number on fertilizers, and if you can, give them organic fertilizer, low in nitrogen, please!





Lilacs benefit from mulching and regular watering. Don%26#039;t neglect to give them a drink, even if they are established.
Reply:lack of sun, water
Reply:Well the frost did in my lilac this year. But I have also heard you have to have another Lilac in the general area for your lilac to bloom. But most here have it right on. You only trim after it blooms or you won%26#039;t get a bloom the next year. And hope it doesn%26#039;t frost again next year.
Reply:Was it pruned in late summer, or later? That would cut off this year%26#039;s flowers . As others have indicated , could just be a fluke of circumstance. Were they unusually floriferous last year? Flowers take a lot of energy . Maybe not enough for this year . Are they very old? Let some suckers come up from the bottom. Cut down ~ 1/3 of the oldest trunks this year, next %26amp; one after that . Then it will be rejuvenated in 3 years . Just to be sure , take a shovel or spade %26amp; stick it in the ground , here %26amp; there, around the lilac. Have had this work on reluctant Japanese Tree Lilacs , %26amp; Wisteria. It provokes (next yr) a %26quot;Oh -no !- I%26#039;m -gonna -die .-Better - reproduce!%26quot; response .
Reply:Lilacs are peculiar - sometimes, they burst into blossom, and other times, they refuse to sprout so much as one. I have a few lilacs and I never know which ones will decide to grace me with flowers each year.





Has it had any fertilizer, though? Mine respond well to Miracle-Gro. It is, however, too late in the season in most places for a lilac to bloom now. They are a spring blossom.
Reply:Well...many species need a good cold snap/frost or winter. some don%26#039;t. I would trim it back, mulch it , feed it water correctly. you never know! I had some that were 30 years old never had been taken care of (older home I had in Colorado) and they bloomed like crazy! I have one now in california (not enough cold I think) not bloomed yet (2 years old).





anyway, a good trim, food, mulch water and sun, and maybe next year you will be blessed!



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