What Time of Year Do I Trim Rose Bushes?

Timing is important when pruning rose bushes.

The pruning of rose bushes is typically done in the early spring or late summer, depending on the variety of the rose bush. With proper timing and maintenance, your rose bush will stay healthy and continue to produce beautiful flowers.

Significance

Pruning promotes new growth, helps prevent the spread of disease by removing diseased or dead wood, allows better air circulation within the plant and helps to control and improve its appearance.

Repeat-Flowering Roses

Repeat-flowering roses bloom several times during the year. The best time to prune them is early spring. The swelling of new buds signals a good time to prune. If you want fewer larger roses, completely remove all weak or short stems. Prune the larger canes back so that they are 15 to 24 inches from the ground. An example of a repeat-flowering rose is the floribunda rose.

Once-Flowering Roses

Rose bushes with a single annual flowering period bloom on the previous year's wood. The best time to prune them is immediately after the flowering period, which is typically during late summer or early fall. For example, old garden rose bushes bloom once each year. No more than one-third of this bush should be removed during pruning. This process removes old nonproductive branches and helps to keep the bush trimmed.

References

• Aggie Horticulture: Pruning Methods
• Arizona Cooperative Extension: Pruning Roses