Some tree species are very drought tolerant and can grow in near-desert conditions, while others need access to abundant water at all times. Many heat tolerant species are also drought tolerant. In much of the populated area of Utah, including the Wasatch Front, precipitation does not provide enough water for the needs of many of the trees we plant. Irrigation is necessary on such sites in most years for all but the most drought tolerant trees. However, trees also can be weakened or killed by over watering
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