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dinosaur1 03-22-2012 08:07 AM

Knockout roses help
 
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My knockout roses look like this after the winter months. I can see some green stems. Should I cut away all of the brown? Also, if you look at the very last picture for some reason that knockout rose died completely during the growing season and wouldn't bloom. I do remember taking away alot of mulch from around this area. Would have done anything? I need to buy some compacted brown soil to put around this area so water cannot get in our basement foundation.

pwgsx 03-22-2012 10:53 AM

yes prune the brown parts, and you can also prune the green ones too, it will sprout more new growth in the spring.

dinosaur1 03-22-2012 11:45 AM

Quote:

Originally Posted by pwgsx
yes prune the brown parts, and you can also prune the green ones too, it will sprout more new growth in the spring.

How low?

pwgsx 03-22-2012 11:50 AM

Im not a pro, but I trim the green back 6 inches or so and if its dead I cut the whole thing. I try and keep the little off shoots trimmed off.

GardenConcepts 03-23-2012 08:43 AM

Prune just above a new bud- which should be visible now. Knockout Roses will get about 4' tall x 4' wide, so you can prune them fairly hard. I usually take them down to about 18" from the crown. Remove any dead canes (the ones without buds- they are tan or brown).

user1007 03-23-2012 09:12 AM

Pruning scares people but helps plants and especially those like roses. Pruning is the best thing you can do for plants save for watering and feeding them.

Cut out all the brown and dead growth. Look for the buds on the new growth as mentioned.

Do work with sharp pruners and dip them in bleach between cuts if you want to be a purist.


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