Eat it: Black-eyed peas have some of the highest levels of folate of any vegetable. It’s thought that folate plays a role in creating dopamine, serotonin, and norepinephrine, three brain chemicals that, when absent, can make you forgetful, irritable, and unable to sleep.
Grow it: Black-eyed peas need long summers with temperatures averaging between 60° and 70°F, which is why they're so commonly grown down South. They need warm days and warm nights, with lots of sun and water. After you plant them, they'll be ready to harvest in a little over three months. You can eat them fresh off the vine, or leave them on the vine until they dry (you'll hear seeds rattling around in the pods) and save them to eat all winter.
Photo: (cc) Kendra McCracken/flickr