With sweet potatoes, which are a root vegetable crop, the name of the gardening game is pairing them with plants that have thick, clay-busting, soil-aerating, fast-growing roots. 

You can even take it to the food foresting, edible landscaping level by growing sweet potatoes as a perennial, if you are lucky enough to live in a place with very mild winters, or you can use other perennials to establish your sweet potato patch and have a go-to place every year to start your sweet potato slips where you know the ground is loosened by the presence of strong, perennial roots. 

Check out these amazing, edible options to companion plant with your sweet potatoes for incredible, huge harvests from your very first year.