Soil for Upside Down Gardening

Question

I tried growing tomatoes upside down and the water ran right through the container without actually soaking the root ball. I’m not sure what I need to add to the potting soil to allow the water to soak in well before running out the bottom. Maybe I should add some clay to the potting soil? Any thoughts?

Answer 1

Well-draining potting soil amended with compost is usually preferred. Here is an article or two that you may find helpful: https://www.gardeningknowhow.com/special/containers/upside-down-gardening.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-tomatoes-upside-down.htm