Best way to winter the Winnipeg Park rose? The first year they looked...
Best way to winter the Winnipeg Park rose? The first year they looked fantastic. We cut them back to winter under paper mâché cones, but in the Spring the canes were black. One died and two other got some slow growth from the base area. How should I get these ready for Winter. I love the roses they produce.
Should one deadhead the the blooms once they have died back?
Please see the extension publication on roses for directions. http://www.extension.umn.edu/distribution/horticulture/dg1105.html
Styrofoam cones are not recommended because they trap moisture that leads to rot. They also heat up too much in the fall and spring on sunny days and this can interfere with the plants dormancy.
Winnipeg Park roses are completely hardy in MN and do not need to be covered, some mulch at the base would not hurt the rose. Be sure to remove the mulch in the spring to prevent fungal rot. Cut off the dead canes in the spring. Deadhead if you want more blooms. Many people find the rose hips very pretty and do not dead head in the fall.