When to Prune Flowering Shrubs in South Carolina

Early spring pruning ensures flowers are not removed from gardenia shrubs.

The best time to prune flowering shrubs in South Carolina depends on whether the shrub blooms on new or old growth, as well as the growth habit of the shrub. Some shrubs need pruning throughout the growing season as well.

Blooming Time

Shrubs such as camellia, gardenia and rose-of-Sharon flower on new growth. Prune these before they grow in the spring. Other shrubs such as azaleas, climbing roses and wisteria bloom on old growth. Wait until after flowering to prune these shrubs.)

Growth Habit

Prune shrubs into a tree form in late winter before new spring growth begins. Fast-growing shrubs used as privacy hedges need frequent pruning -- starting when plants are young -- to encourage dense, well-shaped growth. Prune hedges annually after flowering. Pruning throughout the growing season works best for formal or clipped hedges, according to Clemson University Extension.

Considerations

Cutting large shrubs down to a height of 6 to 12 inches, known as renewal pruning, works best in early spring. Renewal pruning done in the summer or fall causes winter damage to new growth.

References

• Clemson Cooperative Extension; "Pruning Shrubs"; Bob Polomski; February 1999

Resources

• Clemson University Extension: Shrubs -- Overview