Most of you probably already know this, but_____I have been in this business for 35 yrs & just heard about it. Add a capful of vodka to the water for gerberas & tulips to make the stems stiffer. Haven't had any tulips since & learned of this but did on gerbs this week & was really impressed. REally made them stand up. Never too old to learn a new trick. This same person said you can add lemon lime soda to make tight flowers open sooner, haven't tried this yet.