Apr 02, Most lilacs don’t require pruning until they reach about 6 to 8 feet ( m.) tall. The best time for pruning lilac bushes is right after their flowering has ceased. This allows new shoots plenty of time to develop the next season of blooms. Pruning lilacs too late can kill young developing buds. If you are pruning lilac trees or shrubs entirely to within inches of the ground, it is best to do so in early spring.
Jul 08, Start by taking out the thickest stems first. Although you'll be losing some flowers for the current year, pruning overgrown lilacs is easiest early in the spring before the branches leaf out. After three consecutive years of pruning your overgrown lilac. To prune, you can be extreme and cut most lilacs back to near the ground. Over several years they will send up new shoots, but in the meantime they are not attractive. I like to prune back about one third of older branches each year.
University of Maine Cooperative Extension educator Marjorie Peronto demonstrates and discusses pruning techniques for your lilacs.
How to Trim Lilacs. Lilacs are large bushes that bloom with panicles of purple, white or pink flowers for about a month every spring.
Pruning helps promote the overall vigor of the plant. Trimming.
The Best Time to Trim a Lilac Bush. Lilac bushes are capable of producing huge quantities of blooms in colors ranging from pure white to deep purple. Many varieties' flowers have a strong. Sep 17, The shoots or suckers coming up around the base of grafted Lilacs will not be the same bloom type.
Less intense renovation prune. You can also do a renovation prune over a 3 year period. When pruning this way cut out any dead or weak canes, then cut out 2/3rds of the suckers or shoots coming up at the base, leave 1/3 for future blooming stems. Bloomerang Purple lilac is the original reblooming lilac. It blooms in spring along with other lilacs, takes a brief rest to put on new growth, then blooms again from mid-summer through fall.
A bit smaller than other lilacs, Bloomerang also has a nice, rounded shape that looks great anywhere you plant it.