Roses forum: Rose Canes Brown/Not Growing

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May 25, 2016 2:02 PM CST

I have knock-out roses that I planted last summer. I live in NJ. It was a pretty frigid winter and I did not cover them. Their canes started to green in early spring then quickly started browning/blackening down to the rootball. The canes that are pictured are not new growth. The rootball does not feel mushy. I initially in early spring... cut some of the necrotic canes but all seem to have become necrotic now. Are these done for? I bought an insect/fungicide/feeding mix at home depot recommended by someone... and a spray fungicide because I thought maybe it was rose canker. Sorry for repeat pictures.

Any help/thoughts would be greatly, greatly appreciated. So disheartened.


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Name: Porkpal
Richmond, TX
Charter ATP Member I was one of the first 300 contributors to the plant database! Keeper of Poultry Farmer Roses Raises cows
Garden Ideas: Level 2 Celebrating Gardening: 2015 Plant Identifier
May 25, 2016 2:35 PM CST
The one that shows some new growth may well recover. Wait and see. The others look dead or dying. I don't think there is any food or fungicide that would help at this point.

May 25, 2016 3:05 PM CST
Ugh... that makes me so sad.
Name: Sharlene
St. Gallen - Switzerland (Zone 6a)
Garden Ideas: Level 1
May 25, 2016 9:44 PM CST
Porkpal is right - sad but it happens sometimes. I would prune back everything to down to the healthy wood on the one that is showing the new growth.
Name: Cindi
Wichita, Kansas (Zone 7a)
Charter ATP Member Plant and/or Seed Trader Permaculture Roses Ponds Peonies
Lilies Irises Daylilies Dog Lover Beekeeper Garden Ideas: Master Level
May 26, 2016 7:22 AM CST
JRosie, I have seen roses grow to 6 feet in one season after being pruned to the ground. Some places here do that every year just to keep the Knock Outs from getting too large.
I think in 2 months you'll have plenty of blooms.
Remember that children, marriages, and flower gardens reflect the kind of care they get.
H. Jackson Brown, Jr.

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