The Shimpaku air-layers I’ve prepared early Spring are developing very well, with roots filling in the sphagnum moss, and even crawling out of the plastic wrap. Now that fall is here, the roots are not developed much. I wanted to separate the air-layers, and provide them an opportunity to get accustomed to their new pots before winter hits. From one of the trees, I’ve been able to get two air-layers from it. I was very pleased that these two growths have put out a lot foliage over the growing season.
As you can see below, the roots have filled the whole sphagnum moss ball.
After removing the two air-layers, I can concentrate on developing the tree, and not worry about the two air-layers getting in the way.
The two air-layers have a lot of foliage on it, but they also have a lot of roots. I wouldn’t worry about them getting dried up. I ensured that I caused the least amount of disturbance to the roots as possible. I did not remove any of the sphagnum moss, and basically buried the air-layer into the pot (sphagnum moss intact), and surround it by a little bit of soil to secure it in the pot. Come next June, I’ll repot the these into colanders, removing the sphagnum moss, layout the roots, and use some real bonsai potting medium. When repotting, I’ll make sure to pot it into more granular soil, such that the roots don’t stay too wet.
The next air-layer I separated is from another Shimpaku I had. The upper portion makes a mame, while the lower part makes a good literati. With the separation, I’ll end up with two better trees, rather than one awkward tree.
There are substantially less roots in this air-layer, but I think there should still be sufficient roots for it to survive. I’ll find out come next Spring. For now, I’ll let the air-layers grow, while I work on the parent trees.