Outsidepride Asparagus Pea Herb Flower Seed - 100 Seeds Tetragonolobus pupureus herb plant grows as an annual in USDA Zones: 6 - 10 and does best in full sun areas. Asparagus Pea, also known as Winged Pea is a pretty vegetable having red to crimson colored flowers that bloom in the spring. This heirloom legume has edible pods taste similar to asparagus and are often used as a garnish in salads and other dishes. Sow at 1 - 2 seeds per plant and keep moist until germination occurs in 10 - 21 days. Our seeds are always Non-GMO and packaged for the current year.