Black Seeded Simpson Black Seeded Lettuce is one of the most popular leaf lettuce varieties among home gardeners. Introduced in the 1800's, its bright green leaves stay tender and sweet at all stages, making it a great addition to salads and sandwiches. Because it's quick to mature and slow to bolt, this lettuce should be in every southerner's garden 
 
To extend the harvest season, plant lettuce seed every two weeks. Lettuce is one of the easiest vegetables to grow and is perfect for growing in containers.