Beans Purple Seeds Kitchen Garden PackagingThe bean is a bushy, hardy annual that can grow from 3 to 4 feet tall. The bean has square stems with leaves divided into leaflets. Pods are 6 to 8 inches long and contain 4 to 6 flat, oval seeds that can be white, yellow, green, or pinkish red. Purple French beans are delicious in taste and very easy to grow in pots or grow bags both indoor and outdoor year round. The purple French bean pods are long, thin, tender, and crispy also rich in protein and