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Friday, January 1, 2016

Covering a Joshua Tree During Freezes?

Q. I transplanted a Joshua tree into our new backyard in March. It is doing great. Do I need to cover it as temperatures dip down below freezing? 

A. No, you do not need to protect it with any kind of freeze protection through the winter. They are good down to about 10F. Make sure you are watering it infrequently or it can develop root rot and die. Fertilize it once lightly in the early spring with a fruit tree or rose fertilizer.

Just a quick note on covering plants. If you are using a plant cover that does not allow much light through it, you should be taking it off during the day and replacing it whenever you think temperatures are getting too low. If you are using a frost blanket or frost protection which allows light through it, you will not need to take it off during the day. However, you should remove it as soon as danger of those freezing temperatures have passed.

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