The dyers coreopsis(calliopsis tinctoria) is starting to bloom. This is it's second year so it is 4 ft. tall. I will pick the flowers off every other day and dry them in a paper sack. The dried flowers are soaked and simmered for less than an hour and then yarn is added after being mordanted with chrome.4 oz. of dried floweres will dye 1 pound of yarn or fiber to a nice brick red.