best soil to use

Question

I just built a large box container for gardening. It’s 10′ long, 3’wide and 2.5′ deep. Should I layer the box with potting soil then compost or dirt? And what is best to retain moisture?

Answer 1

I like to use a combination of 60 % topsoil, 30 % compost and 10% soilless growing mix (commercial potting soil).

This article will help you with your garden project.

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/best-soil-raised-garden-beds.htm