Dwarf Lemon Roots
I have an in-ground pool and want to plant a dwarf lemon about 8 feet away. Can the roots of the dwarf lemon cause some damage/cracks in the concrete walls of the pool? How do the roots of the dwarf lemon spread? Same question about dwarf magnolia and angel trumpet.
Certified GKH Gardening Expert
With any tree, they will not cause damage to walls or other structures unless they lack for something - either room for roots or water. I think certainly a dwarf citrus or dwarf magnolia would be fine as they have very small root systems compared to other trees. A angel trumpet (assuming you mean brugmansia) may get a little large, but I am uncertain how much space you have so I cannot say for certain.