So I only set up a few cuttings because I wanted to try my hand at grafting this year. These 3 cuttings are from the same mother tree, my Black Jack which is pretty vigorous, all roughly around the same diameter. The 2 on the sides are in damp coco coir and were put in 32oz deli cups on 12/25/15, the one in the middle was put in the same size cup but in old soil mix (lost a rooted cutting from last year and recycled the soil) but the thing is that I didn't do it until mid/late January 16. The 2 x-mas cuttings were washed and dipped in wax, the 3rd one was't even washed or dipped!!! I have noticed some spider mites but no gnats in the soil mix and no bugs at all with the coco coir and they are in the same humidity chamber.
Coco coir works great but liked I said, my only gripe is the weak roots. When time for up-potting, I use the same coco coir with the soil mix I choose for that rooted cutting. I don't really shake off the coir. What ever sticks, stays!!! I feel like the extra shock of completely new growing medium hurts its chances of surviving so I leave most of the coco.
One more detail, the middle cup has roots all around while the coco coir cuttings are only what you see...
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