Tree roots are like a wine glass on a dinner plate. They spread 2x the height of the tree (way beyond the drip line) & most are located within the top 6-24” of the soil. Roots do not mimic the shape & size of the crown of the tree.
So, where do the roots go when trees are planted in tiny holes surrounded by concrete? Think about street &/or parking lot trees.
#rhetoricalquestion #themoreyouknow #girdlingroots