Hi,
Im a beginner in the art of bonsai and last winter I have put several young trees in full ground to fatten up their trunk. I let them grow the whole year but now I dont really know if I should just keep letting them grow or if I should prune them.
I have three trees in full ground:
1. Ginkgo biloba
2. Lork/larix
3. quercus robur (oak)
I have been trying to find answers on forums and other sites but its still not clear to me what the best approach is. Especially for the ginkgo biloba which is very sensitive to large cut wounds and doesnt make new branches on old wood very well. I'm afraid if I would just let it grow that it will have very large scars and I wont be able to make enough small branches on it later on. If I should prune them every year can you give some advice on how,where and when to prune this tree? I added a photo of the trees in an attachment.
For the larix and quercus robus I read that they respond very well to pruning and easily make new branches on old wood. So i was planning on letting them grow and aply the "cut and grow" technique, letting it grow to 2/3 of the wanted stem thickness and cut it of at 1/3 of the final tree height. Do you think this is a good idea ?
