Perennial Sweet Pes/Knock Out Roses - Knowledgebase Question

Islip Terrace, Ne
Avatar for luandcliff
Question by luandcliff
November 6, 2010
when do I cut back after frost or in Spring for Sweet Pea Bush.
Just planted three knock out roses. Do I do anything this fall before winter sets in? Still have some blooms.

Answer from NGA
November 6, 2010
After frost kills the sweet peas, cut everything down to soil level. They'll sprout again in the spring. Knock Out Roses are winter hardy. You can prune them back by one third when they go dormant after a hard frost and then you can pile shredded leaves over the bases of the plants. Best wishes with your new plants!

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