Jun 22, For the very oldest and most overgrown forsythia, pruning should be brutal, cropping the entire shrub to about 4 inches (10 cm.) from the ground. New shoots will emerge and, with careful trimming, forsythia can be renewed and rejuvenated.
Jan 03, 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.
If you’ve been pruning the shrub regularly and it’s in good shape then go ahead and prune after. Jan 08, Pruning forsythia requires some basic knowledge of how the plant is meant to grow. Forsythia flowers give us one of the first splashes of color in early spring gardens. But to get that color and a well shaped shrub, it’s important to trim forsythia bushes correctly. Jul 12, Pruning however is widely considered a daunting task in gardening but is well worth the effort.
Adding to this, pruning forsythia is much easier than other shrubs, given that it shows rapid growth, hence any errors are temporary, and can be fixed in a single season. 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%. Jun 01, The first is renewal pruning, where less than a third of the canes or branches are removed. 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.
Inside that old wood next year's blossoms are already forming. The picture to the right shows a forsythia in.