40-60 days to maturity. Diplotaxis tenuifolia. Wild Arugula Seeds. Non-GMO, perennial, open-pollinated, heirloom, Certified Organic by Oregon Tilth. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Wild arugula seeds grow as a medium hardy perennial (Zone 5) that is easy to grow. Although still bright and peppery, wild arugula seeds deliver a far more complex and subtle profile compared to traditional culinary arugula, while still ready for harvest in about 6 weeks. Approx. 100,000 seeds/ounce.