A day later than usual, here's the latest Ci Newsletter, this week with a definite Spring theme. First, there's a new graphic with a focus on crocus chemistry, along with a nod back to an older graphic on flower aromas. Then there's some Guinness chemistry for St Patrick's Day, along with some thoughts on the dyes some cities use to turn rivers green. Along with all that, there's a new Women in Chemistry History graphic and the usual round-up of chemistry news and features from elsewhere on the web.