I got this peachy tan color with cedar apple rust fungus.I collected some cedar apple rust fungus from some cedar trees back in March. I boiled them in an aluminum pot for an hour, then left them to soak in pot for 1 week. I strained the liquid and returned it to the pot. I boiled the yarn for 30 minutes. I did not intend to boil it but I got distracted. I used a mini skein of Norwegian wool, that was unmordanted.Cedar apple rust fungus:
I tested a sample in a hot sunny window(in July) for 1 month and it did not fade at all. I will definitely collect alot more next March.