I have this in afternoon sun, maybe 4-5 hours of direct sun. It blooms beautifully, right up until a hard freeze in November.

Last year the blooms were so heavy and numerous that they flopped over. I don't know whether it's related to not getting full sun, or my poor pruning job in the spring. No more flopping after that first very heavy flush of blooming.

This is truly a carefree rose. They got a little bit of powdery mildew and black spot during mid-summer heat, but they recovered on their own without being treated. There was a bit of Japanese beetle damage, but no treatment needed for that, either. I give them a little osmocote in the spring and mulch with leaf mold and coffee grounds.

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No spraying needed on Double Knock Out ever. Plus this rose really does like to bloom a lot. Not as much as the single version though, and if I had to do it over again, I might have gotten the single version Knock Out instead. The blooms on Double Knock Out simply do not fall when done and stay on the shrub in messy brown rotting balls unless I cut them after bloom. So I always do have to prune after blooming if I want it to look attractive.

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Absolutely wonderful plant. After trying about 50 other different types of roses, and growing discouraged because of the diseases associated with Southern grown roses, I finally found a Rose that needs almost no attention. They never have blackspot or rust and in Southern Louisiana humidity, that is a miracle. They should be spaced at least 4 ft apart. They bloom constantly from spring to fall. I was even able to have a vase of roses on my table in November. They actually look like a Hybrid Tea, which I love. What a joy to have blooms all the time . They should be transplanted only in early Spring while they are dormant. I enjoy walking slowly thru my garden and as I walk, I simply snip the older dried up blooms off. (I carry small snips in my pocket). In just a little while, the bushes are all full of blooms again. Love, love this plant!

How to Prune a Knock Out® Rose by ConardPyle
Follow these simple steps to prune your Knock Out®
Step 1: When do I prune my rose bush?
Prune your rose bush in early spring, never in the fall and never in the winter. Check your rose bush from time to time as spring moves along and when you start to see new shoots growing from the canes on your rose bush, that’s a good sign that it is time to prune.
Step 2: Use proper tools
You will need a few basic tools when the time comes to prune your roses: gloves, because of the thorns on your rose bush. Lopping sheers, for some of the heavier canes that are going to be difficult to cut with some of the smaller sheers. Small hand sheers, for some of the finer work, and a pair of hedge trimmers to get the job done quickly.
Step 3: Determine how high you want to prune
Determining how high you want to prune depends on how high you want your rose bush to finish. Your rose bush will usually triple in size after pruning so cutting it back to about a foot will leave it at 3 feet when it finishes growing.

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Performs spectacularly here in my zone (6b). Although not fragrant, I planted it next to a fragrant rose to make up for that one shortcoming.

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