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Help! Dahlia pinching question...

Posted by GirlSunshine none (My Page) on
Wed, Jun 13, 12 at 20:41

Hi all!

Brand new to dahlia growing though I love them...I even had a whole new bed put in at my house this year just for glads and dahlias. Anyway, I pinched back some dahlias today that we're about 18 inches tall right above the 3rd set of leaves. The stems were hollow there. Do I need to worry about water getting in the stem and it rotting??? Also, any other advice is welcome for a newbie like me. :)


Follow-Up Postings:

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RE: Help! Dahlia pinching question...

Mine are usually shorter than 18" at the 3rd leaf level, so I dont see much hollowness at that point, but I dont think you need to worry about water getting into the hollow stem and damaging them. Most experienced growers prune dahlias at the 2nd, 3rd or 4th leaf levels, and I've never heard anyone mention anything about needing to prevent water from getting into the stem there.


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RE: Help! Dahlia pinching question...

I have read that it can be a problem, that water, bugs, etc down the hollow stem can cause rot to the tuber. If its a very small opening I dont worry, but I have on occasion had a hollow stem with a 1/4 " hole or larger. I taped it over with electrical tape. I have used electrical tape for stems that develop vertical cracks too, it works well to keep them from splitting open. (looks a bit odd though)


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RE: Help! Dahlia pinching question...

I hate to waste anything. Will pinched off stems take root?


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RE: Help! Dahlia pinching question...

Wayne - the rule is to pinch them back right after that 4th leaf set begins, so what you are pinching of is only about an inch or less. I have never tried to root Dahlia tops, I doubt that hollow stem cuttings would root, if small enough to be solid , then possibly, but with Dahlias, its easier to just wait and divide the tubers.


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