Frequency & quantity of water for queen palms during the hot AZ summer? - Knowledgebase Question

Chandler, Ar
Question by hunttess14
August 23, 2008
We moved into a home that has many types of palm trees around the pool, and sometime in early July the fronds became brown and/or a yellow/green (especially the queens). I have received lots of advice on palm tree health, but much of the info is different. I've fertilized and just recently applied ammonium sulfate, having been told this is a sure-fire way to green up the fronds. Would like to know how often and how much water queen palms need during the summer in Arizona?


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Answer from NGA
August 23, 2008

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There are no sure-fire ways of knowing exactly how much water your Queen Palms need - it depends on their size. But expect the roots to be shallow and wide (from 1-4' deep and spreading out to the ends of the fronds. Arizona State University recommends watering everyday when the temperature is 95 or above; 4 times a week when it is 84-94; 3 times a week 75-84 and twice a week when the temperture is 74 or lower. I keep my Queen Palms green by applying ammonium sulfate in March, July and again in September. The ends of the fronds can become dried out because of wind but the rest of the frond should remain green on healthy plants.

Hope this helps!

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