In the last case, onion dyed merino and silk and brazilwood dyed merino in two shades were overdyed, pink shifting to brown, yellow changing to green.
Again, I have mordanted vegetable fibres in alum+ washing soda solution and then proteins (soy milk+ egg), all this done twice and then left the fibres in the proteins for about a week (until I had time to dye). I also mordanted two cotton fabrics only with proteins and it seems the dye take up was as good as when alum + soda were used. ALL the above fibres were dyed in one pot, quite amazing considering the variation and depth of color.
Comparing this grey to logwood, it is more towards green and teal, with pure merino more towards purple. Alkanet is a smelly dye and I irritating to my respiratory tract, it would be great to work with outdoors.
Literature: Jenny Dean, Wild Color and Colours from Nature; Gill Dalby, Natural Dyes, Fast or Fugitive; J. Hardman&S. Pinhey, Natural Dyes