Answer: I agree, finding a septic friendly tree is difficult! The best approach is to find trees that remain on the smallish side. Mesquite grows nearly 50 feet tall and wide at maturity; much too large for an average sized lot. Some smaller trees for you to consider include Redbud, Chinese Fringe, Crape Myrtle, Flowering crabapple, flowering plum, Chinese snowball, or the Chaste tree. All grow less than 20' high and wide, which means their roots will be contained in a much smaller area than the roots of a mesquite. Hope this information is helpful!
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