Haven’t you heard it for years…that coffee grounds and eggshells are beneficial to the soil in your garden? We asked P. Allen Smith for his thoughts on this age old myth…. flowerFlowering Plant (Organism Classification)gardengarden tipsgardenergardener tipsgardening tipsP. Allen Smithproven winnersVariety (Organism Classification Rank) Write A CommentYou must be logged in to post a comment.