Amending soil

Question

I recently moved to Montana. The soil is very heavy clay. I am thinking to add gypsum, sand and compost to grow peonies and other perennials. Can you give me a ratio of these additives or suggest anything else?

Answer 1

These links will help you.

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/how-to-improve-clay-soil.htm
https://www.gardeningknowhow.com/special/organic/how-to-easily-improve-your-clay-soil.htm