Callous on cuttings?

namiJune 17, 2007

I snipped some cuttings on some of my roses such as - Spice, Mrs. B. R. Cant and Mlle Franziska Krueger. I put the cuttings in water on my kitchen window sill - no direct sunshine but bright light.

In about 3 days the cuttings developed a blackened and hardened portion at the end(where i snipped them from the bush) and where the lowest leaf sets were. The top sets of leaves are green.

Is this a callous?

Now should I transfer the cuttings to potting medium ?



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irish_rose_grower(z7 LI NY)

Sounds like a callous to me. I've never gotten anything like that on cuttings in water.

I would transfer asap to potting mix. Good luck.

    Bookmark   June 18, 2007 at 8:21PM
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rosyone(z8 north Louisiana)

Doesn't sound like it to me. Callus appears as a lumpy white swelling.

    Bookmark   June 19, 2007 at 12:38AM
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Doesn't sound like a callous to me either. A callous is usually a white group of swellings.

    Bookmark   June 21, 2007 at 10:19PM
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and this would be when to pot it up??

    Bookmark   July 5, 2007 at 3:29PM
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I look for white callous that sort of curls around the end of the stem. That will take several weeks sometimes, depending on the rose. Some callous sooner than others.

    Bookmark   July 26, 2007 at 10:39AM
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drasaid(zone 8)

I find the best bet is to keep the cuttings in a bag until callous develops THEN stick them in the dirt (and cover with a jar.) Callous keeps the black rot (which is what I fear you have) from developing. I have had stuff root after rotting some, but it does NOT HELP I am sure.

    Bookmark   July 29, 2007 at 10:06AM
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I read somewhere that if you root rose cuttings at a very high temperature (+70-80 degrees) that they would have a tendency to develop a callus instead of rooting. Don't hold me to it, because I got this off the internet and don't know myself if it's true or not.

    Bookmark   September 14, 2007 at 7:08PM
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The callus is the first stage of rooting.Then the roots form. What is happening with these cuttings is rotting.

    Bookmark   September 16, 2007 at 1:36AM
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Rotting is what I was thinking too..if my cuttings start to turn black on the ends, I pitch them, and try some more.

    Bookmark   September 17, 2007 at 2:35PM
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