If you love having fresh evergreen in your home for holiday decorations, keep that aroma brewing by recycling the boughs in your dye pot - needles and all! The natural tannin in the branches will give you a beige color on textile, but with an iron water shift, you can achieve deep grays as well. This tutorial will show you how to brew dye from a noble fir Christmas tree and shift color with iron water, plus the resulting color swatch samples (cotton, bamboo, linen & silk) with various mordants.