Q. When do i prune my repeat blooming modern shrub roses in USDA zone 7a ? spring or fall ?
When do i prune my roses ? spring or fall ? my roses bloom all summer, they need to be pruned , they are old plants maybe 10 or 15 years old.
our location is in a USDA zone very similar to the New York City area. As a general rule of thumb, roses that flower only once in a season should be pruned right after flowering and roses that flower several times during the season should be pruned in late March or early April once the buds start to break (swell and green up): the adage is to prune your roses "when the forsythia blooms". The majority of modern roses flower over a long period, like yours, and should be spring pruned.
If you have repeat blooming modern shrub roses or repeat blooming old garden roses, they will bloom on new growth as well as laterals of one- and two-year old canes. In the spring, cut back main canes by half and laterals to just two buds. Thin out branches that are older than three years.
You can certainly cut out any dead or damaged canes in the fall, as well as canes that are likely to be badly damaged by winter winds due to their ungainly length.
Courtesy of NYBG Plant Information Service
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