gardening with Leon Episode 1. Go to the 20 minute mark and he mentions it right after that. It's very brief because the video is only 20:58. Sorry I don't know how to link it. Unless he's saying something else and my brain is translating wrong....that would not surprise me.
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In that video, around the 20 minute mark, Leon talks about using Styrofoam for soil aeration instead of perlite or vermiculite because it is so much cheaper. He says he can get a 10 cubic foot bag of Styrofoam for $10.00 whereas a 4 cubic foot of Vermiculite would cost $24.00.
That is good info to know because in the past I have used the Vermiculite insulation sold in the 3 cubic foot bags and was paying about $20.00 at Menards. That comes out to $6.67 per cubic foot.
For whatever reason, Menards has now discontinued the bulk Vermiculite product and if you want to buy Vermiculite today, you have to pay through the nose for a small bag of the same stuff in the garden center. In the garden center, they charge you $4.42 for a 8 quart bag of Vermiculite, which is equal to $16.53 per cubic foot, or $49.59 per 3 cubic feet to compare it to the 3 cubic feet bag of bulk Vermiculite insulation which I used to buy at $20.00 per bag.
So I guess I will be looking to see if I can buy a bulk bag of Styrofoam this year.
Anyway, here is the video you are talking about.