I am behind the curve on growing my own dynamic accumulators like comfrey, dandelion, horsetail, nettle and yarrow, etc, so I am having to source these as dried plants. My question is, should I get these cut and sifted or powdered? Is there a discernible difference? I intend to mix in to the soil, so i'm thinking that powdered would be most effective. Any guidance would be much appreciated. Thanks!