Arugula Italian Seeds are an easy and fast-growing salad plant with fresh, peppery leaves that add a zesty flavor to salads and sandwiches. The pretty, edible blossoms attract pollinators. Sow directly in well-worked garden soil in early spring, 1-2 inches apart, in rows 10 inches apart, in full sun. Keep the soil moist until seedlings appear in 7-14 days. For a continuous supply of fresh, non-bitter leaves, sow every 2 weeks until early summer. Harvest young leaves in 3-4 weeks or snip leaves above the crown for multiple harvests. Thin seedlings to 2-3 inches apart for best growth.