BERGENIA
Bergenia (flowers + greens)
Cook for 1 hour (be careful not to let the bath get too hot, or the plant looses its blue color pigments).
Leave the plants in the water for 1 day.
100g wool (treated with 10% weight of fibre: 10g Alum over night, used lake water). 5g silk (treated with 10% weight of fibre Alum over night, used lake water).
Heat the wool & silk for 1 hour and then leave it for 1 day in the dye bath.
For a deeper color, use more plant matter.