(Coriandrum sativum) The fresh leaves of this herb, commonly known as cilantro, are used in a variety of Asian and Latin cuisines, but its seeds are also collected and used as a spice called coriander. Successive sowings of this annual herb, which bears umbels of white flowers before it sets seed, will ensure a steady supply of its edible leaves throughout the season. 50-55 days to first leaf harvest, 90-120 days for seed. Annual, 1-2' tall.