Winter is best time to prune in Oklahoma

Tracey Payton Miller: In Oklahoma, the absolute best time to prune is in the dead of winter, when the plants are fully dormant.
BY TRACEY PAYTON MILLER Published: October 29, 2012
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Seems everyone is eager to get their landscapes cleaned up and ready for winter. With the beautiful weather we've had lately, I can understand the itch to get outside.

However, I can assure you it's best to wait a little longer on pruning those deciduous plants.

In Oklahoma, the absolute best time to prune is in the dead of winter, when the plants are fully dormant. Mid-November to Mid-February is when we get our coldest temperatures, and there are several reasons for pruning at this time. First, with the leaves off the tree, you can see the overall shape and exactly what you are removing. In addition, because the tree lacks leaves, clean up may be easier. Second, some trees are heavy ‘bleeders', or exude a lot of sap. Sap leakage will be minimized when pruning in the dormant season. Third, insect and disease populations will be slim and won't tend to colonize open wounds. Lastly, pruning at this time, before any new growth emerges, ensures you will not disrupt any floral displays. This is extremely important for crape myrtles and roses that bloom on new wood.

The next question is always “how much can I take off?” And for the most part, I've noticed pruning is like trimming sideburns or bangs: if you do it yourself, you may end up bald or with a mullet. For most plants, no more than one-third of the overall growth should be taken off in one season. If you really want to hack something down, spread it out over several seasons. The amount you can safely remove in a year is even lower for fruit trees, and shouldn't exceed more than 10 percent of the overall growth. And remember to take a step back and access your progress once in a while.

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