Hi Nikki and thanks for the data but I still do not know anyhing about which part is the best to use. Maybe I should just do as I do with my Confrey; chop the leaves and stalks coarsely, put in a sack, soak for a month and dilute to the usual weak tea colour for liquid manures.
Yarow Fertiliser Again
Certified GKH Gardening Expert
Just the finely chopped or crushed leaves should be sufficient.
HI Nikki and thanks for the reply, my task for today is to harvest a bag of Yarrow from a patch on the edge of the bush near home. I note that the roots of Yarrow are similar to those of Coriander and from my cooking book notes, the roots of coriander are are very potent and i wonder if the same aplies to Yarrow. Do you have any information on the identity of the chemical/s in Yarrow which make it so potent?