large plants

hey i am making a very large garden out back next summer and i want to fill it with vegetables and flowers but i want breeds that grow tall/large like heirloom

does anyone know any large vegetable or flower breeds
thanks in advanced

corn, sunflowers,tomaters,and uh ummm chronic

yea im thinkin that i saw these seeds called sunzillas and they are sunflowers that grow 12-14 feet but the breeder has grown them to 30 feet, im gonna get some of those