knock out roses

richsdJuly 31, 2013

Will regular knock out roses survive winter in Aurora without any winter protection, or should I expect them to die to the ground? Thanks.

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polygonum_tinctorium

Supposedly they are hardy to zone 5, which would be safe for Aurora, Colorado, at least during most winters. A little winter protection might be wise if you're worried, especially if they are grafted and not own-root roses. But they are probably safe for the average Aurora winter. There are plenty of reports of them surviving zone 4 winters in places like Wisconsin and Minnesota.

    Bookmark   August 4, 2013 at 1:11AM
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richsd

ok, thanks polygonum. I'll try that.

    Bookmark   August 7, 2013 at 1:53PM
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GLiz

We have two chain hardware store-type knock out roses that had a very hard winter this year (as did all of our roses and everything else in our garden). We pruned a lot of dead branches, fertilized, fought off an aphid infestation, and now both knock-outs are bigger than last year, with lots of nice blooms.

    Bookmark   August 8, 2013 at 4:28PM
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richsd

thanks for the info, GLiz! My brother's not much of a gardener, but at least I'll know what to expect when I visit his garden.

    Bookmark   August 9, 2013 at 11:10PM
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