Is it safe to use Styrofoam in planters for vegetables?
Hardiness Zone: 6a
According to this web site, it doesn't sound like it would be too safe.
I've used it with no problems so far.
Yes, for two good reasons, helps with the drainage and makes the planters lighter and so much easier to move. I've used this method for a long time and have had no problems.
"Fortunately" is right, it's not safe, in spite of Styrofoam being used for coffee/tea cups. #1, though probably not too toxic, is not very lasting, so it's for wasteful disposable water bottle use. That leaves #2 and 4 (polyethylene or polythene for short), and #5 polypropylene. Bear in mind too that most plastics are from petroleum, part of US dependence on oil that leads to imperial wars like the ones currently being fought over control of SW Asia. All in all, try perlite and vermiculite, coir, maybe sphagnum if that isn't too damaging to the environment. Some people use bark to lessen weight.
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