Can I Use The Inards Of A Duvet Cover To Put In A Container Pot To Save Soil. Will It Retain Water Or Do Harm To Plants Please?

Question

The container I wish to use is too big for the plants so want to pack it out. I don’t have bricks or pebbles or polystyrene but I do have plastic bubbles sachets would that also be OK Please.

Answer 1

I wouldn't use anything soft inside the container. It will likely get moldy. Now experts recommend using a "pot within a pot." Plant your pot in a smaller container of soil, then place that in the desired larger container filled with styrofoam or similar filler.

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