These products are new to the gardening market and sound promising. Most of them are only practical for small areas. The jury is still out on just how helpful these products are, but we encourage you to give them a try and let us know how they worked for you. Gypsum often comes up when discussing clay soils. Gypsum is a mineral product similar to lime.
Lime is calcium carbonate and gypsum is calcium sulfate.
Billed as an amendment that will help improve soil drainage, it isn't clear whether it is very effective in our soils which are already very high in calcium. Gypsum has been used effectively in areas where the soil is very salty. The sulfate part of gypsum will also help to slightly acidify the soil. Inc. All rights reserved.