Named for Scottish horticulturist, William Forsyth, forsythia are hardy.

Feb 27, Forsythia produces flower buds on current season’s growth, so if you want to maximize the flower show, prune shrubs shortly after they finish flowering. All pruning should be completed before mid-July in order to give plants enough time to put on new growth and develop flower buds.

Pruning is often regarded as one of the most intimidating aspects of gardening, but pruning forsythia should not.

In this case, it is time for either renovation pruning or hard pruning.

Jun 22, The best time for trimming forsythia is in the spring after the blooms fade. Pruning forsythia in late summer or fall will reduce the number of flowers in the spring since these shrubs bloom on old wood and set their flower buds soon after new growth appears.

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 you. Jun 01, This might be done every three or four years or as needed.

Be careful to prune the new tips and leave the old wood; forsythia blooms on old wood.

Sometimes, the forsythia plant grows branches toward the base.

Inside that old wood next year's blossoms are already forming. The picture to the right shows a forsythia in need of renewal pruning. Y. Jan 03, For rejuvenation pruning or if you’re trying to reduce the overall size of the shrub, it’s best to make your pruning cuts in late winter or early spring when the forsythia is still dormant.

Yes, this will sacrifice some of the spring-time blooms. But you’ll be able to easily see the structure of the plant to determine which stems to remove.