Hugely popular for over 150 years, it's one of the most tender and delicately flavored leaf lettuces available. One of the first lettuces to be dubbed heirloom! The ruffled leaves are large with an appealing green color. Black Seeded Simpson is also one of the more durable greens, and will show good resistance to heat, cold, infestation and other potential problems. The light-green leaves are especially juicy, and are suitable for salad and other dishes Simpson is well adapted to a wide range of climates and is still the best for early spring sowing. ~1/4-1/2 tsp per packet.