The only regret is that buttonwood is not good for indoor doors. Sycamore tree is not good for residents' health, and it is also prone to mass annihilation.
Sycamore tree is a tall deciduous tree. Because of its fast growth, high crown and large shade area, it can transmit the deciduous sunlight in winter, so it is often planted as a street tree. As long as the maintenance management can be in place, it can be planted in the yard.