Fact checked by Jillian Dara Roses, long a gardener's favorite and our country's National Flower, still suffer from the ...

Unlike other rose varieties, the Knock Out rose is ... you won’t run into any trouble when it comes to planting the bushes. Most Knock Out roses thrive in USDA Hardiness Zones 4-11.

However, as stated, it can still be worth it to deadhead these bushes. As Elena Williams of the American Rose Society says when talking about Knock Out roses, "Snipping off spent blooms during the ...