ALDER CONES (Alnus glutinosa)
Alder cones, just like the bark, have tannins present and can create some lovely browns and yellows.
Colour fastness: medium - good
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Basic Recipe:
Alum (mordant) 10-15% D.W.F
Alder cones 100-200% D.W.F
Pour boiling water over the cones and steep for 24-48h
Simmer the cones for two hours and strain. Add the mordanted yarn to the bath and leave until desired colour outcome or overnight.
*You can change the colour using iron