Mostly dried out at work on a hot pipe but I finished the drying in a pan with a saucer of silica gel beads and lid on top.
I ground them up with a pestle and mortar then essentially followed this procedure: http://www.wildcolours.co.uk/html/starting_to_dye.html
The one on the left is dyed using iron sulphate as a mordant whilst the one on the right I used sodium chloride (table salt) as the mordant. I was hoping for a brighter red like this woman has managed: http://shroomworks.wordpress.com/2008/12/20/80/ . She has recommended using wool or silk and to use 'Alum' as the mordant. I also didn't scour the socks properly before dying which I guess might have contributed to faded colour.
After a couple of hand washes they both faded more