We’ve all seen trees surrounded by concrete that goes all the way to their trunks and would seem like they would not be able to absorb any water from their roots when there’s nothing but concrete for at least 10 yards or more. Yet they seem to be growing as if they weren’t in the midst of a concrete jungle. Trees in concrete, how do they do it?
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Concrete let’s tiny amounts of water through, that little bit reaches the dirt and thus roots.
I’ve never seen concrete all the way to the trunk. They leave a square around the tree, usually about 5 foot by 5 foot. So the tree gets water this way. However, those trees also are usually much smaller than they would be in a more natural area.
Those trees are planted in openings in the concrete pad/asphalt that go directly to bare soil. For getting water, the concrete and asphalt may appear water tight, but unless coated thoroughly to be water tight, it will still pass some water
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