Jan 03, When to Prune Forsythia. The timing of your pruning depends on what you’re trying to accomplish. The usual advice is to prune after the shrub blooms in early spring. Forsythia bloom on stems that formed flower buds the previous year (called “old wood”) so if you prune before it’s flowered then you won’t have any flowers that year.
May 22, Forsythias are large bushes with bright yellow flowers that bloom in the early springtime. When pruning, aim to give each stem lots of room as it grows.
If you want your plant to grow as many flowers as possible, prune it in the springtime after it blooms. If you want to tame an overgrown plant, prune it in the summer, fall, or winter%. Jan 08, Like many perennials, spring is the best time for pruning forsythia.
Do this later in the spring after the blooms fade and the leaves are starting to grow.
If you wait until summer or fall to trim forsythia bushes, you’ll find that the number of flowers that. Jun 01, pruning pointers for spring-flowering shrubs These tips can also apply to lilac, spirea, azalea, and other shrubs which flower in spring. Any time your tools are sharp is a good time to prune, say some. I think right after blooming is the best time; as you can tell which canes or branches are successfully blooming and which have stopped.
You can also prune forsythia after they finish blooming. Prune a mature bush to control its shape by clipping off the ends of branches and removing any broken or damaged limbs.
Thin out overgrown bushes by removing 1/4 to 1/3 of the branches, cutting the off the canes just above ground level.