Matt Hughes i like to grow tiny trees and tinker on stuff

Prepping a trident maple for an air-layer next spring

I picked up a trident maple last fall, and it's time to start planning the trunk chop. The tree is about 24" tall now, and I'm planning to chop it down to around 10".

Trident maple pre-bonsai

Trident maple pre-bonsai

Since the top half of the tree is getting chopped, I'm going to experiment with an air layer. The top part of the trunk doesn't have anything impressive for nebari, so I decided to try a tourniquet wire to thicken it up. I first found about about the tourniquet technique from a thread I posted on Bonsai Nut.

Everything I read online says to use copper wire for a tourniquet, but I ended up using 3mm aluminum wire. I think the recommendation for copper is to use a smaller gauge wire while still being strong enough dig into the trunk.

Making an incision for the tourniquet wire

Wrapped around the incision with 1.5mm aluminum wire

1.5mm couldn't handle the tension!

Successful tourniquet using 3mm aluminum wire