Dyer's backyard - actually, part of the family farm

Blackberries, nettles (too late in the season to use), and hidden below - horsetails.
Purple and pinkish hues, greenish  yellows, and mustardy-yellows respectively.
Also available on the farm - birch bark (pinkish beige), old dock heads (pinkish brown), oak galls (beige, and deep grey with iron modifier), as well as lichens, bracken and numerous fungi still to be experimented with.
BELOW:
(Right) Weld, indigo and a selection of hues from madder.  Mostly using Devon Longwool, but the pink is mohair.  The fabric at the back is cotton muslin.  Terracotta from neutral / slightly alkaline madder, the pink from high alkali, second dip / soak in madder (ie the yellower hues are taken up first - Hint!)
(Left) A selection of 'wild' or hedgerow dyes.