Or,rather, the mason jar is the limit for root expansion. In an effort to squelch the debate, one of our rosemary sprigs shot up over the past week, ending tens of days of speculation regarding whether or not the sticks would live and sprout or go the way of the do-do bird. The good news is ten percent of our crop lived! Of course we only planted ten rosemary sprigs, so we will enjoy this one little survivor until I forget to water it or remember to plant it outside!