Lilac won't bloom
We have a huge lilac bush (it's more like a tree as it's probably close to 15 ft or more tall and about as wide) that hasn't really bloomed the last two years. It's gotten a few blooms on mostly the new wood/suckers, but the main plant hasn't (it did bloom the first couple of years when we first moved here, but the last couple it hasn't). The tiny buds I see are either left over from previous year, or they are new and then dry up - not sure which.
I looked it up on google and found one page that mentions a reason may be that the plant is too old. In that case, you have to "rejuvenate prune" it. This would be a difficult task because of the size of the bush!
Anyone else have problems with their lilac blooming? Anyone else try pruning an older plant back and have success with it blooming again? I love the color and the scent of the blooms, so would really like to revive it if possible!