1,500+ Seeds. Wild Arugula is an herbaceous plant found in the wild in the Mediterranean region. Also known as rocket, roquette, rugula, arugula, and rucola this herb (lettuce) has a strong, somewhat peppery flavor. Wild Arugula is used in virtually every salad mix sold in stores and is probably the most-eaten salad green in the world. Best when harvested young (leaves less than 4" long) and has excellent re-growth properties. Seeds can be sown directly in the garden or started indoors. 45 Days.