We have a magnificent specimen growing at a bend in our driveway with its back to the house and are concerned about its root system pushing up the concrete of the driveway or getting into the foundation of the house. It is extremely healthy and is already bout 7' tall. It gets full sun all day from the south and east and is watered by an irrigation system. Its conditions obviously are just right for it to have grown from a small potted plant. Our weather is mild enough that it rarely loses most of its leaves.
We've never cut it back. It's lower branches drape over the driveway I think elegantly whereas my husband is just getting concerned about root intrusion.
If we trimmed the lower branches to expose it's trunks would it slow down it's growth?
Is there a relationship of the root system to the width of the tree? But most of all, I ask if it's roots are aggressive enough to disturb the concrete at it's perimeter?
Thank you for any answers.