Master Gardener classes so that they learn what is expected of them. Most home grown vegetables are annuals. The exceptions include asparagus and artichokes, and in very hot climates where there is never frost, peppers. However, in the Californian climate many vegetables get confused. My broccoli and kale have been behaving like perennials - they just don't seem to know when to quit!
Kale in particular, has been my go-to crop since December 2009. When I say that, I mean that the seeds I planted in October 2009 grew into plants that I have been harvesting leaves from steady since December 2009. I'd just pull the lower larger leaves from the bottom and the crown would keep on going until the kale plants came to resemble mini palm trees. I grow the ragged-edged, purple-veined Russian red kale and the dark green Nero di toscana kale. Both of which are tasty, versatile and just keep on giving!
Last week, after a particularly warm stretch of weather, I noticed that the Nero di toscana had decided enough was enough - they were putting out blossom. My Mum and Aunty Teresa (My Fairy Godmother), who are visiting at the moment, were recruited to help bring in the kale harvest before it all bolted.
Now, that's what I call teamwork.