Author Topic: Air layer staying too wet  (Read 1509 times)


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Air layer staying too wet
« on: July 17, 2014, 11:14 PM »
I started an airlayer wrapped in plastic and that wrapped in foil.  The way the trunk is above the layer, I had a difficult time sealing it to the point that water wouldn't get into the moss.  (But not excessively so.)

I've checked it twice and while there's been plenty of callous, there are no roots.  I think that's because the sphagnum is staying too wet, so I've reworked it in a pot instead of wrapped in plastic.  I put down bonsai soil all around the bottom of the pot (after securing the pot in a few spots).  Then I wrapped the sphagnum around the trunk, and and covered that with bonsai soil.  The idea being that the bonsai soil would wick moisture away from the sphagnum.

I've recently had good luck doing it this way, ...and the last couple of times I used plastic wrap it stayed too wet. 

My question (and I apologize for taking so long to get to it): how do you keep your layers from staying too wet?


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Re: Air layer staying too wet
« Reply #1 on: July 18, 2014, 12:32 AM »
Never had any trouble of this sort, but punching a couple of drainage holes in the bottom of the bag/plastic covering would be enough to take care of the problem.

But since you've now got a pot around it, ditch the sphagnum except to cover the drain holes so your bonsai medium doesn't fall out. Growing layer roots into bonsai medium is far better than into sphagnum. You will need to water it regularly, though. If you cannot do that, then wrap up the works inside polyethylene film.


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Re: Air layer staying too wet
« Reply #2 on: July 18, 2014, 05:45 AM »
My "layer at a friends house" was staying too wet. Or I thought.

So I punched a 1" hole haphazardly.  If it WAS stayimg too wet. It worked.

I like and have used soil. But isnt pushing into the Sphagnum what makes for thick roots?