Cumin
The most widely-used spice in the world, cumin may be new to many US gardeners, but the flavor has long been on our tables. It is the signature flavor in tacos, chili powder, and many barbecue rubs, as well as sausages, pickles, liqueurs, and curry. Like it's cousins carrots, parsley, dill, and cilantro, it is easy to grow and likes to get started in cool spring soil. Also like them, it is a champion at attracting and feeding beneficial insects and pollinators. It's drought-tolerant once established, very tolerant of high heat, and makes seeds in a single season. (They need about 120 frost-free days to mature seed, and can be started indoors in short-season areas.) The plants are small and so airy that they cast no appreciable shadow, so they're easy to fit among other plants. If you tuck a few plants here and there in the garden, you'll have a pest-control aid that doesn't cost you any space and produces a crop of fresh spice at harvest. Win Win Win!
Cuminum cyminum 200 seeds