Miura Hiroki (from Miura Baijyu-En nursery) is a specialist in shohin bonsai. Here he shows how to improve trees with reverse tapering trunks by using air-layering techniques
At Taisho-En you can learn various advanced techniques. Here Nobuichi Urushibata gives us an example
This maple was suffering from weakness and dying branches due to being pot bound and
How-to guide for growing pines from seed...