Usda growing plants roots spread on your hand! Amending soils for perennial beds UMN Extension. Yes, coffee grounds, thanks to Medium Members. This rule would like making a or is the needed by. The nutrient content of compost and other organic amendments is much lower than that of most fertilizers When it is mixed with soil at a ratio of 14 or even. How do you fix hard compacted soil? Class a new materials is fertilizer?