John K Jordan
Have you ever tried dye from Osage Orange wood? A llama/alpaca friend here tells me it is supposed to make a good fiber dye. I wonder if it will hold the yellow color or if it will slowly change to brown like the wood itself.
Perhaps it's just a matter of using the proper mordant. If so, can you use a mordant on wood? (Yikes, I just had a deja vu moment - did I ask you this a couple of years ago?!)