Saffron is the most expensive spice in the world — but did you know you can grow it right in your own backyard? With a little effort and patience, Marin home gardeners can cultivate Crocus sativus, ...

It’s hard work to harvest, but a growing cadre of small farmers and home gardeners are cultivating the spice for profit, or simply pleasure. Bulb-like corms, at top, produce saffron crocuses. Each ...