Hi all! I was wondering if I could use those squashy polystyrene worm shapes that are used for packaging, in the bottom of a deep container so that I don't need to put so much compost in it. The pot is 50cms wide at the top and it is 41cms high. I'm planning on putting a wigwam of 3 or 4 canes in it and growing runner beans and a few sweet peas for pollinators. Do you think those plants will need a full pot of compost, or could I put a layer of polystyrene worms in the bottom? I don't want them to affect the drainage or have an adverse effect on the beans!
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