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Late fall and winter weather often brings a natural cleanup, but unless you prepare for it, it can also cause damage. Open up spaces in dense trees. Allow the wind to pass through — a full tree with no gaps in it acts like a sail on a mast. A strong wind may capsize it, especially if the ground is wet. Remove dead and weak branches.
Make sure young trees are well staked. Tie them loosely, so they can move back and forth in the wind without being toppled. Trees need to flex in wind in order to develop strong trunks. When using wire for tying, run it through a section of old hose so it doesn't damage bark. Check all staked trees now to make sure no wires are restrictive. Once trees have become well rooted, remove the stakes and wires, so bark doesn't grow over them.
Prune top-heavy shrubs: Cut back top-heavy shrubs, such as acacia. Where it is necessary, remove whole branches to allow the wind to pass through. Head back young shrubs to force branching and strengthen their trunks.
Prune cane berry plants:
Prune selected cane berry plants, including blackberry, boysenberry, loganberry, and spring-bearing raspberry. Cut the old canes down to the ground, leaving new ones that grew this year. On fall-bearing raspberry plants (which only grow well in the mountains) cut off the top of the cane that has borne fruit. Leave the bottom of the cane to fruit in spring.
For those in warm areas - don't prune the canes of subtropical (low-chill) raspberries, like 'Oregon 1030,' 'San Diego,' 'Baba Berry', and 'Fallgold'. These are the only kinds of raspberry to grow in warm climate zones, and all of them produce their best berries on new wood. Wait until December or January, then prune these by cutting them nearly to the ground. Dig up the suckers to make new rows.
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