What To Fill A Very Large Planter With To Reduce Compost Required

Question

I want to buy a very large terracotta pot a few feet high. It would obviously take an awful lot of compost to fill. Do you have any suggestions for what I could use to take up space that would not be detrimental to any plants and would not disintegrate causing the planting to drop. Many thanks

Answer 1

You can fill the bottom with Styrofoam peanuts but plant your plants in a separate plastic container and set it on top of the peanuts. I have also set the potted plants on top of an inverted plastic nursery pot.

https://www.gardeningknowhow.com/special/containers/using-styrofoam-in-containers.htm