Shallots have a mild, subtle onion flavor that makes them very popular with chefs. How can you grow it yourself? You can cut some of the green tops to use as green onions, but leave some to feed the plants. Fall planted shallots will be ready to harvest early the following summer. Spring planted shallots should be ready in mid- to late summer, depending on the weather. As with onions, shallots will signal they are ready to be dug when their tops start to yellow and fall. Shake off excess soil and let them sit in a dry, shady spot for a couple of weeks, to cure. You can store shallots for up to 8 months, if kept cool. Keep reading about shallots here.