Categories: Growing Flowers Planting and Growing.
Dec 10, Cut one or two of the lilac's oldest stems back to the base of the plant if the shrub is several years old and becoming bare or scraggly looking at the base.
This encourages the. Apr 02, When to Trim Lilac Bushes. Knowing when to trim lilac bushes is important. 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 stumpdrop.clubted Reading Time: 2 mins. Late spring: Cut the tallest canes to the ground. Thin out excess suckers. Shorten any remaining cane to allow it room to grow un-cut the rest of the summer. Below, left: In year three the dwarf lilac blooms well and is the right size for this bed.
Below, right: A few weeks after it blooms, we cut out the tallest canes and thin the rest. Jul 08, The time to prune mature lilac plants is just after the flowers have faded in the spring. Lilacs set next season's flower buds almost immediately, so late pruning will mean sacrificing the next year's flowers.
Pruning early also gives new shoots more time and energy to develop, ensuring plenty of blooms for the following stumpdrop.clubted Reading Time: 7 mins. As the plant matures, some “renewal pruning” should be done. This is done in early spring by removing two or three of the plants largest canes to the ground. Repeat this process each year over a three year period to re-invigorate old plants. Please be aware, however, that renewal pruning will reduce the number of blooms for that year.