Because cowpea is a heat-loving vine, it will grow on trellises, up arbors, and over teepees. These vine-covered structures add vertical interest to herb and vegetable gardens. And when placed strategically, they can provide privacy or lush green backdrops to beds and borders. Like most vegetables, cowpea also thrives in a container garden—either by itself or when paired with low-growing vegetables or herbs at its base.
How to Care For Cowpea
As you might expect from a Southern favorite, cowpea loves heat, humidity, and sultry summer weather in general. Plant it in a spot that sees full sun (at least 6 to 8 hours of direct sun each day) and well-drained soil. Unlike many vegetables, cowpea doesn’t need nutrient-rich soil to thrive. It works with beneficial bacteria in the soil to produce its own nitrogen. Cowpea is exceptionally drought-tolerant, so once the plant is established, you may only need to water it during extended periods of hot, parched weather. That being said, regular watering helps keep the vine healthy and helps you get the best possible harvest. Start cowpea from seed. If you live in an area with short summers, start cowpea indoors 4 to 6 weeks before the last expected spring frost date. Because this plant loves hot weather, plant it in the garden only after temperatures consistently stay above 60 degrees Fahrenheit. To avoid disease, plant cowpea in different spots of your yard every two or three years. Called crop rotation, this practice prevents harmful fungi and other organisms from building up in the soil. When rotating your vegetables, don’t plant cowpea where you grew other legumes (including types of peas and beans) the previous year.
