Almost all shrub roses should be pruned in early spring. To help you remember this, just repeat to yourself, “When the shrub rose blooms, it’s time to prune!” Using sharp pruning shears, cut about a quarter of an inch above an outward facing bud. Be sure to cut down and away from the bud at a 45-degree angle. If you cut too far above the bud, the remaining dead tissue could develop the disease. But if you cut too close, there might not be enough stem left to support the bud.
The goal of pruning is to remove dead wood and give the plant a good foundation of growth for the upcoming season. If you have a healthy, established plant, you’ll want to choose three or four of the strongest looking canes that will form the frame of your bush. Choose healthy looking canes that are spaced well and prune them back to about 6″ in height. If you’re working with a new plant — or one that’s been neglected — cut back to 12″ in height.
While you’re pruning, the shrub rose, remove any suckers that have grown up from the root stock and clean up any dead or diseased leaves that have fallen around the plant base. One of the most common rose diseases is black spot disease — a malady that will cause rose leaves to become spotted, die and fall off the plant. These decomposing leaves can be a breeding ground for the disease, so be sure to clean them up to prevent them from infecting your plant in the future.
For gardeners in Minnesota wondering when to prune shrub roses, this is what you should know about shrub roses:
Some shrub roses start to flower just before summer. The right time to prune these shrubs is early summer, so that the new growth of these shrubs, get appropriate time to ripen as well as mature.
Some roses need to be pruned in winter or spring so that they get their next blooms in the following season.
Shrub roses have two distinct pruning techniques:
This is usually done in the early spring, mostly in April.
. contingent upon the seriousness of the winter, prune all dead or harmed sticks.
. More seasoned, less productive sticks developing in the heart of the hedge can be totally expelled.
. Decreased by around 1/3 their length.
. Numerous shrub roses grow on their roots and those will comeback even if killed to the ground.
. This is carried out during the active growing process of the shrub roses.
. Remove the spent blossoms to motivate the plant.
. Tally down at least two leaf sets from the sprout and prune simply over the leaf set; prune through mid-August.
. End the summer pruning by mid-August.
When you’re finished pruning, you should seal all your pruning cuts with a sealing compound to help prevent any disease from infecting them. Elmer’s glue works well.
Ultimately, when you’ve finished pruning, you want a rose bush that is about 20 inches tall with 4 to 8 canes remaining. Give your bush a bit of fertilizer in the springtime, and you should be rewarded with an abundance of glorious blooms in the summer. Checkout our Pruning Service