To keep your lilacs looking their best, they need to be pruned, fertilized and shaped almost every year, soon after they are done blooming in the late spring.
Cut back forsythia in mid-spring, after it blooms. Forsythia flowers appear from February to April, so you must prune the shrub no later than mid-June.
The best time to prune olive trees is in late winter or early spring, just before the new growing season begins. This gives the tree a chance to recover and.
If there are an excessive number of circling roots at the side the rose will benefit from root pruning. Take a sharp knife or a pair of grass shears and trim.
If possible, trim hedges in mid-morning. This is when the dew has evaporated and there is limited moisture in the air. If not possible, aim for late afternoon.
The best time to prune azaleas is in late winter or spring, a few weeks after they have finished blooming. Here are detailed instructions for how and when to.