Forsythia Tree Pruning. A small pruning saw is useful for slightly larger branches. So before pruning forsythia it s essential to get the planting right also.
Pruning forsythia should not cause too much stress and worry because it is such an easy going and fast growing shrub so its pruning errors are hardly permanent and can be corrected in the following years of new growth. Hedging shears should never be necessary on forsythia. Eliminate a quarter of the oldest stems by cutting at the ground level.
At this point the plant starts to develop next year s buds and the plant carries the buds through the fall and winter season.
Wait for your yellow flowers to fade and for the leaves to grow. So when is the best time to prune these shrubs. Eliminate a quarter of the oldest stems by cutting at the ground level. So before pruning forsythia it s essential to get the planting right also.