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My Knockout Rose Bushes- Did I kill my rose bushes?

Posted by Meliza12 none (My Page) on
Tue, Jul 1, 14 at 15:57

This is my first time caring for knockout rose bushes. They were planted on each side of my home last year. They bloomed in May but started to die off quickly in June. I did not water them all the time but tried to often. I saw the buds were being killed off by Japanese beetles. I bought liquid Sevn and sprayed the leaves and buds. I used too much and scorched the leaves yellow with black holes. Our temps here get into the low 90's each day. I also pruned out all of the dead buds and leaves. I think I pruned them too much. They now look completely dead with a lot of brown branches coming out. How do I save them? With rose fertilizer? I did use Miracle Gro Bloom Booster. Nothing has happened yet. Help!!!!


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RE: My Knockout Rose Bushes- Did I kill my rose bushes?

Where are you? Add your locale too.

I wouldn't do anything. Surely not add anything else to the mix except to keep them well watered. Don't stress them out further. Water and time maybe...

This post was edited by kentstar on Tue, Jul 1, 14 at 17:07


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RE: My Knockout Rose Bushes- Did I kill my rose bushes?

Right, don't fertilize until they have recovered and have put out plenty of leaves. Bloom Buster is the wrong kind of fertilizer--regular Miracle Gro or Miracle Gro for Roses is fine, or any reasonably balanced fertilizer such as 10-10-10 or 18-6-12.

Watering correctly is the most important thing. Keep a 2" mulch of leaves or bark around the roses. When the soil under the mulch feels dry-ish, water thoroughly with 2-3 gallons for small plants or 5 gallons for larger, plus or minus for extremely hot or very mild, cloudy weather. Usually once a week is fine. For new plants, I divide the ration in half and water twice a week.


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