While my lilac bush produces every year; what would cause the flowers to be almost white this year instead of their usual violet?
Flower color can fade over time and chill hours on your Lilac Tree effect blooming on a plant.
This could very well be due to the Hybridizing of the plant. A tree can began to revert to another part of the hybrid.
Sometimes a tree will send out a branch of two of a different color all together.
Why don't my lilacs flower as much as others I have seen?
This article will help you pinpoint the cause.
https://www.gardeningknowhow.com/ornamental/shrubs/lilac/lilac-bush-not-blooming.htm
THE LITTLE LILAC SHRUB BLOOMED BUT NEVER DEVEOPED LEAVES. OTHER LILACS NEARBY BLOOMED AT THE SAME TIME AND DEVELOPED LEAVES AS USUAL.
This article may help
https://www.gardeningknowhow.com/ornamental/shrubs/lilac/common-lilac-problems.htm
Hello, I have a large purple lilac bush that is almost 10 years old. It always produced purple blossoms. Last spring the bush did not grow in well and barely had any flowers. I trimmed the bush back last summer. This spring it produced a few white blossoms. Now it has red berries on it! Did I do something to it when I pruned the bush? Help!?
A Lilac does produce seeds. These articles have more information.
https://www.gardeningknowhow.com/ornamental/shrubs/lilac/lilac-bush-not-blooming.htm
https://www.gardeningknowhow.com/ornamental/shrubs/lilac/pruning-lilac-bushes-when-to-trim-lilac-bushes.htm
https://www.gardeningknowhow.com/ornamental/shrubs/lilac/lilac-seed-propagation.htm
Will my lilac come back it was cut to a stump
Yes, your Lilac can grow back after being cut to the ground! I've seen it happen!
It may take a couple of years for it to get back to a size that is blooming.
it said in an article about harvest lilac seeds "check and see if your lilac is a hybrid" How do I check?
Most Lilacs growing in our gardens are Hybrids.
Here is a link with more information.
http://chemung.cce.cornell.edu/resources/lilacs
My lilac bush grows these "shoots" out of the trunk. Is this normal? They are growing from near the base, but definitely from the trunk of the bush. They grow really fast and tall. Is this normal? If not what should I do? I've cut them off in previous years and they grow back every spring.
These are coming from below the graft. Go ahead and remove them as soon as you see them start so you plant will put it's energy into growth above the graft where you blooms will develop from. Often grafted plants have a different variety below the graft and suckers are common. We see this a lot in citrus and figs.