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

Certified GKH Gardening Expert
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