|my knockout rose is gorgeous but taking over the whole space and choking out other plants. when can I prune? and how much?
|Answer from NGA
October 8, 2010
|Knockout Roses will take any amount of pruning but timing is important. Wait until your plants experience a hard freeze. This will send them into dormancy and you can prune them back by as much as one half. In the spring they'll begin to grow nicely for you. In early to mid-summer you can prune them back again to keep them under control. Enjoy your garden!
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