I have ordered two 5-7 year old citrus trees(orange and lime). Now I am looking for sturdy enough planters to plant them in in my backyard. I am going for the look underneath. However if I get that made out of cement it would way around 800lbs for 31 inches in diameter. My floor is marble and it will likely crack under this pressure.
I see that there are fiberglass options that are a lot lighter. Will those be sturdy enough to contain the trees without breaking over the pressure of the roots.
I am also planting in planters because I don't want the trees to get really big.