Wool naturally dyed with avocado pits. Chop the pits and freeze until you have enough to use for a dye.11 fresh pits., hot water, and ½ teaspoon of washing soda (pH turned 9). Once a day I’d simmer30 min, while checking the pH. When it lowered, add a bit more washing soda. The dye color deepened after each heating. for a week before I added alum pre-mordanted wool, simmered30 minutes, sit in the dye overnight.