Yamadori Rehabilitation Area

Providing good conditions for newly collected material is always tricky when you don’t have a greenhouse. The goal is to protect from wind and intense sun, but the trees still need some sun to recover (especially spruce and larch). I have my trees up against a fence, and a double layer of shade cloth protecting the southern exposure. As trees gain some strength, I will remove one layer. The strongest trees may be moved into direct sun later in the season. I am also misting them as frequently as possible. It has been very windy the last few days, which is not a good thing.

This year, I also gave my newly collected trees a sprinkling of systemic imidacloprid granules. This is mainly to help the larches fight off any borers they may have brought home with them. I suspect that borers contributed to the decimation of last years crop of collected larch.

Something else new I’ve tried this year with my larch is screwing the tree into the wooden box instead of wiring them in. I got this idea from Sandev Bonsai. It can be very tricky to securely wire yamadori into pots. Since larch usually come out of rocky soil with few feeder roots but a number of thick stubs where large roots were cut, it is much easier to drill in a few brass wood screws to lock them into the box. It is imperative that these trees don’t wobble to protect the fragile roots.

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