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.
Cut off all of the lilac bush's branches that are broken or show obvious signs of disease.
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 shrubnotch.clubted Reading Time: 2 mins. Jul 08, 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 in this way, new shoots should comprise the bulk of the shrubnotch.clubted Reading Time: 7 mins. If you trim a lilac bush too late in the year, then you’ll cut off unwanted branches and next year’s blossoms. The ideal time to prune is just after the bush finishes blooming for the year. Jun 19, Knowing when to trim older lilac bushes is important. Most lilacs don’t require pruning until they reach about 6 to 8 feet tall. The best time for pruning older lilac bushes is right after their flowering has ceased.
Cut away shoots or suckers that are growing near the ground.
This allows new shoots time to develop the next season of blooms. Pruning too late can kill young developing buds. Deadheading, should be done as soon as possible after the flowers fade. The old flower cluster should Estimated Reading Time: 3 mins.