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pinching and ramification

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Old 27-May-2006   #1
m_s_ifland
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pinching and ramification

OK, here's a great question. I've read all this stuff about "pinching new growth" to get great ramification. When you're talking about pinching new growth do they mean new buds, or letting it grow for a few leaves then pinching it off. If you just continue to pinch of new buds then the tree will never have new leaves, right?

Can someone explain this in simplistic terms for a beginner?
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Old 27-May-2006   #2
Cathie
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It means pinching off a lot of the leaves on a branch (of a deciduous tree) to leave only 4-6 (couple of pairs if they're opposite) so the branch doesn't just keep growing straggly, and so that the new growth at the end of the branch will have smaller leaves (hopefully!) and more of them, as pinching provokes the new growth to split into two new twigs with their own set of leaves - doesn't work for every tree, but for most, or a lot of them. Pinching on a conifer refers usually to growth or buds at the ends of the branches - each type (5, or 2-needle, etc) is done differently - see 'Articles' on www.evergreengardenworks.com for a great explanation of this.
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Old 27-May-2006   #3
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"When you're talking about pinching new growth do they mean new buds, or letting it grow for a few leaves then pinching it off. "

There are really a couple of kinds of "pinching new growth" in deciduous trees. The first produces ramification. The other is used to keep the image "in bounds."

The first entails allowing new shoots to grow until they have five six or eighteen new leaves. The object is to get the new shoot to "mature" turn woody, then cut it back to one or two leaves. This stimulates new shoots at the cut site and new leaves. Pruning new immature shoots that have not lignified or turned woody, will NOT pruduce new buds, as the hormones that stimulate new branching aren't present in green tender shoots yet.

The second kind of pinching is done to simply shapren the plant's outline and can be done on green shoots.

Which type you use depends on what you're trying to do with the tree. Older alreay "rammed out" trees need only outline pinching. Newer trees in development require more ramification...
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Old 27-May-2006   #4
m_s_ifland
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OK, understood. That clears things up for me.

You guys are so helpful, thanks.
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Old 28-May-2006   #5
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Pinching in order to get back budding (forcing new growth on woody areas) is also used a lot, as Rock has stated, this really all comes down to redistibrution of growth energy. Once you learn how your tree grows ,wether it's apically dominant or branch tip dominant(like juniperus horizontalis) you will be closer to acheiving the shape you want through tip clipping or pinching, in order to send the growth energy of the plant to the ares that you want new growth in. Like ohters have said though this doesn't work with ALL trees.
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