|Delicate white flowers of a bolting arugula plant.|
Before you know it, the plants, which have not been harvested regularly, decide they have had enough of all of the components (sun, rain, cool weather) and wham, bam: bolting. After lettuces bolt, they typically are too bitter or in arugula's case, too hot, to consume. I just let nature take its course: the flowers will produce seeds and repopulate the garden with new arugula plants. Because these plants have bolted now, I think they might possibly reseed before the end of lettuce season, if we don't get an early hot (think too much sun) spring.