Depending on where you live the best time is in the fall when trees are starting to go dormant.
The previous answer is wrong. Weeping cherries bloom profusely unless you prune it in the fall. You should prune it (and all spring blooming trees) in the spring after the blooming is finished.
I've read to prune after flowering.
In Spring after flowering if pruning is necessary.
The best time to trim a potentilla, and any other summer-flowering shrub, is in the spring before the potentilla buds out.
You should prune a lilac before it starts to bud out in the Spring. To encourage new growth, this is the best time. For shaping, anytime the plant is dormant, has lost its leaves, will work.
You can ,but why would you? The right time to prune a Forsythia is immediately after flowering.
After the bloom is the best time to prune a broom shrub.Specifically, the shrub blooms from April to June. Flowering is followed by ample seed production. A regular pruning schedule may be instituted any time between August and October. The earlier time will control seed production while encouraging leafy regrowth. The later time will control both.But pruning for damaged, dangerous, dead, diseased, dying parts -- the pruning rule of the d's -- can be done at any time throughout the year. As is the case of regular pruning, it never should be done after a rain event or to wet wood, both of which tend to encourage tree diseases.
You should prune a flowering plant before it starts to bud out in the Spring. This is the best time to encourage new growth. For shaping, anytime the plant is dormant, has lost its leaves, will work. If you need to do some work during the summer, wait until after the plant has flowered.
what is the best time of the year to prune liveoaks
Prune Escallonia in early Spring .
A woody plant whose above-ground parts include buds which blossom is what a flowering shrub is. A shrub additionally is less than 30 feet (9.14 meters) in mature height. The flowers may appear any time between early spring and late fall, depending upon the variety.
After flowering. Unless the plants have outgrown their space it is better not to prune them. You may lose the next years flower.
winter