[Molly H]

I think Andy's information is not entirely correct. Many herbalists say to use the whole herb rather than extract, as was stated, but this doesn't mean literally use the whole plant. In the case of seeds for example many herbalists prefer the whole of the seed to be used rather than a seed extract, but not the whole of the plant. It's a bit confusing as you can see but many things in herbalism can be confusing to be honest.