Grab all the petals you can get your hands on! You need a lot, a 1:1 at least, but the more the merrier!
Pack the petals and fibers into heat proof jars with a lid. Add one tablespoon of distilled vinegar, and top everything off with hot water. Stir or shake vigorously.
Put in a sunny spot, this is my fire escape.(I like how it's made of wood. Makes me feel extra safe!) A sunny window would also work if you don't have access to the outside. Check on your jars in 24 hours, it may take up to 48 hours for the yarn to begin to change color. When your yarn has reached the desired color rinse the fiber in cold water and hang to dry. *Note the color is going to be pretty subtle, but still beautiful!