is vermiculite important
I am building some raised beds. Thanks to this group I know I can get compost from Singh's farm. I am wondering how much vermiculite does to retain water in the summer. I am not an experienced gardener. I have been using Kellog's Garden Soil in my present 2'x2' containers. Lots of wood product. Squash, except for the Delicia, are going great, and tomatoes are starting to grow fruit. Beets are wonderful, but yardlong beans are yellow and not growing past about 8 inches. I water every day and am not sure if they are getting too much water or too little. Tomato leaves are folded up and that should mean too much water.
I guess my question is that the wood chips seem to keep the soil loose. Is vermiculite needed also? Not a lot of money here.