Watering - Knowledgebase Question

Pittsburg, Ca
Question by ronaldbrewe
August 26, 2006
After setting year old trees in the ground and watering and applying miracle grow with several gallons of water, how often should they then be watered.


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Answer from NGA
August 26, 2006

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Most landscape trees and shrubs will be happy with about one-inch of water per week, either from rainfall or from the hose. I find the easiest way to water is to build a basin or water ring beneath each plant. A water ring, sometimes called a water well, is a mound of compacted soil that is built around the circumference of a planting hole once a plant has been installed. The water ring helps to direct water to the outer edges of a planting hole, encouraging new roots to grow outward, in search of moisture. The height of the mound of soil will vary from a couple of inches for 3 gallon shrubs, to almost a foot for balled and burlapped trees, especially those planted on a slope. Mulch over the ring will help to further conserve moisture and prevent deterioration of the ring itself. Once a plant is established, the water ring may be leveled, but you should continue to mulch beneath the plant. Once a week fill the water ring, allow to drain, then fill a second time. This concentrates water over the root system and allows it to trickle down, wetting the entire root mass.

Best wishes with your new trees.

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