roses - Knowledgebase Question

Ansonia, CT
Question by jocika
September 16, 1999
I have 2 roses bushes in containers on my deck, and they have done wonderful all summer except for a little mold. My questions are, now one of them has grown very tall and I don't want to trim it back for fear I will lose it this winter. Am I doing the right thing by leaving it alone and how do I protect them this winter? This is the first time I've had any luck with roses any sugestions are welcomed


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Answer from NGA
September 16, 1999

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According to the book "Roses for Dummies", your containerized roses will benefit from winter burial in cold climates. The best time to do this is when nights start to get consistently frosty. Dig a hole and bury the containers in soil (to insulate the roots from extremes in temperatures). After the ground freezes hard, cover the soil with straw mulch. Gradually remove the mulch and soil as temperatures warm in the spring, and unearth the containers.

For any rose, nitrogen based fertilizers should be withheld approximately 6 wks. before expected frost dates, but continue to water throughout the fall. Allow September blooms to stay on the plants to form "hips". Clean up all dead leaves and spent flowers from the bed, since they can harbor disease. The canes of climbers and ramblers can be wrapped in burlap and secured to some support stakes for extra protection against dessicating winds and heavy snowfall (and in your zone I probably would take that extra step).

In the spring, when buds begin to swell on the canes, prune them back (1/2 to 1/3 of last year's growth) to allow new flowering stems to develop.

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