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Optimal cutting diameter for rooting

Has anyone had success with cuttings that are 3/4" in diameter? That's all I have left of the Home Depot cuttings after sending out over 200 pencil-sized cuttings. I've had additional requests but don't want to send something that may not root as well as the pencil-sized cuttings.

The branches I have still look firm and healthy. I was going to stick them straight into the ground as an experiment but if there is good rooting potential, I'll send them out.

Thanks,

Sue

Had success with 1-1/2" curttings.

Hi Sue,

I've got a 1" cutting starting to root in a bag now.  It took it longer than most of the smaller cuttings (5 weeks or so), but the mold stayed away luckily.  I hope to cup it up in the next day or two.  Because this rooting business is so unpredictable it might have been coincidental that it took longer.  Jon, do the thicker ones generally take longer to root for you?

Henry

No, they seemed to root just as quickly, but you have to keep them in higher humidity after you pot them up, because of the greater surface area of the twig.





















Jon,
 
Once you pot the cuttings in vermiculite, how long before you see visible roots on the side of the cup?
 
How long do you keep them in vermiculite without any visible results?  In other words, at what time do you just give up and throw them away?
 
Thanks for the info.

Time varies according to variety and conditions and whether they were pre-rooted in a bag. I give up when the cutting is dead, though I might move it to regular potting soil if nothing happens in several months.

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