Defoliating Two Japanese Maples

3 months ago Nebby 0

Source: Valavanis Bonsai Blog.

Although defoliation is “generally” recommended as a bonsai training technique it actually requires considerable thought and it’s necessary to contemplate each specific tree and the purpose of removing foliage. Today I’ve been told that Ryan Neil and others do not recommend total defoliation of healthy maples. Unfortunately, I did not study with Ryan, whom I respect, and others. I must have skipped the defoliation chapters in the books studied. I’ve learned through intense study (both in the US and Japan) and actual practice for well over 50 years that plants, especially Japanese maple cultivars have diverse growth habits and respond differently to bonsai training techniques. There are numerous reasons for defoliating deciduous, and even broadleaf evergreens, such as for increasing the number of twig ramification, reducing leaf size, transplanting out of season, reducing vigor on developed trees, energy balance, preparing trees for exhibits, improving air circulation and sun, improve autumn coloring, enjoying colorful spring shoots again, facilitating easier wiring, reviving dehydrated trees, eliminating pests and disease and more. The health, age, size, stage of development, climate and reason for defoliating a tree must be carefully considered, especially with established developed specimens. Undeveloped trees can generally withstand more stress than more developed trees. June 2020 Katsura Japanese Maple Defoliated Bonsai And Garden Tree. Both Are The Same Age, My 40 Year Cuttings. I recommend that the foliage matures and trees are fertilized before defoliating in late-spring and summer for maximum results in developing a new flush of growth for training or…

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