When to Prune Roses
- Roses should be pruned in the period just before the vegetative restart (semi-dormancy) which in the regions of northern Italy means between the period of late January and the whole of February.
- Reordering prunings can be practiced at the beginning of autumn by slightly shortening the vegetation, especially in very vigorous and disordered varieties.
- In places where vegetation and flowering is almost continuous, it’s recommended to intervene in the cooler periods in order to induce the plant to dormancy.
- For the species and varieties that love heat (Tea, Chinese, Noisette, Bancksiae, Gigantea and their hybrids) you can practice courageous green pruning even after the first flowering.
In sheltered and protected areas and where there are microclimates, it is possible to prune even in winter or as soon as the minimum conditions have been reached to induce the plant to dormancy (average temperatures below 10 ° C).
When not to Prune Roses
- Roses should not be pruned in the active growth phase, or in the phase that goes from budding to the formation of new shoots and leaves.
- Plants should never be pruned in conditions of intense frost either because the bud below the cut could die, or because the plant is not in operation and would not be able to heal wounds.
- During periods of high heat, cutting the vegetation of the plants too much may produce burning of branches that were less exposed to the sun.
Why to Prune Roses
- Accelerate the development of new vigorous and healthy stems that replace the old and weakened ones.
- Facilitate air circulations within the vegetation to prevent the onset of diseases.
- Get a plant in harmonious form and encourage flowering during the season.