Junipers
I find it hard to imagine that wounds in this genus would not close as
in other trees, Iris Cohen schreef Yet it's true. I can show you on my own Juniper bonsai. No, the fact that it is a bonsai has nothing to do with it. Other pruned bonsai heal just like outdoor trees. Iris, + + + I am not one to argue with the facts, but could you provide a little more detail? Are those wounds never overgrown or only at a very late stage? If these are never overgrown then a big trunk of Juniperus should be full of holes where the branches used to be? PvR |
Junipers
If these are never overgrown then a big trunk of Juniperus should be
full of holes where the branches used to be? Iris Cohen schreef Actually they are not full of holes; they are full of the stubs of dead branches. In bonsai lingo these are called jin. The scars of dead wood down the trunk are called shari. An old collected juniper full of jin & shari is highly prized. The bonsai experts carve the dead wood to enhance its natural appearance. We paint the dead parts with lime sulphur to keep them from rotting. The whole process is also done artificially on nursery stock. If you are styling a juniper and you want to remove a branch, you can't just cut it off. You have to make a jin out of it. I learned all this the hard way. There is a famous bonsai artist out your way, Mark Noelanders, who can tell you all about it. Iris, + + + The fact that stubs are not overgrown does not mean much, this would be the rule in most trees. Looking up Marc Noelanders I find he is from Belgium, which is very close to here indeed, athough not within calling distance. http://www.bonsai.lu/noelanders.htm Seeing all the little trees on the various web sites I feel pity for the abuse they have to endure, although I must admit that in a few cases the results are quite stunning. PvR |
Junipers
From: "P van Rijckevorsel" I find it hard to imagine that wounds in this genus would not close as in other trees, Iris Cohen schreef Yet it's true. I can show you on my own Juniper bonsai. No, the fact that it is a bonsai has nothing to do with it. Other pruned bonsai heal just like outdoor trees. Iris, + + + I am not one to argue with the facts, but could you provide a little more detail? Are those wounds never overgrown or only at a very late stage? If these are never overgrown then a big trunk of Juniperus should be full of holes where the branches used to be? Sean Houtman schreef My observations of Junipers here in New Mexico indicate that the bark does not grow to cover a wound or a dead stub until the tree grows out to that area. If you leave a 5 cm stub when pruning, the tree will need to grow about 5 cm (radius) before that stub will be covered by bark. Most other trees will quickly grow bark to cover stubs. If you make a large wound on a Juniper, it may never get covered up. This may be due to the large quantity of aromatic compounds found in Juniper wood, the tree doesn't really need to protect itself as much. Sean + + + The quality of wood likely has nothing to do with it. The heartwood is quite durable, but in wounds it is the sapwood which is exposed and that is not resistant at all. Wounds are entry points for diseases (read: fungi). Stubs are bad too PvR |
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