At a Glance
Overview
Lactuca sativa 'Simpson Elite' is an improved strain of the classic black-seeded Simpson lettuce, producing loose heads of tender, light green leaves with excellent heat tolerance. This cultivar forms rosettes of broad, crinkled leaves that are deeply lobed and have a delicate, sweet flavor with minimal bitterness even in warm weather. The leaves emerge pale green and maintain their tender texture throughout the growing season, making this variety particularly valuable for summer harvests.
The plant typically reaches 6-8 inches in height with a spread of 8-10 inches, forming attractive loose heads rather than tight heads like iceberg types. Lactuca sativa 'Simpson Elite' is distinguished from other leaf lettuces by its superior bolt resistance and ability to maintain quality in temperatures that would cause other varieties to become bitter and go to seed prematurely.
Native Range
Lactuca sativa is believed to have originated in the Mediterranean region and western Asia, where wild forms of lettuce still grow today. The cultivated forms were developed through centuries of selection from wild Lactuca serriola, spreading throughout Europe and eventually worldwide through human cultivation.Suggested Uses
Lactuca sativa 'Simpson Elite' works well in vegetable gardens, raised beds, containers, and succession planting schemes for continuous harvest. Excellent for cut-and-come-again harvesting, salad gardens, and mixed plantings with other cool-season crops. The attractive foliage also makes it suitable for ornamental vegetable gardens and edible landscaping.How to Identify
Growing Conditions
Sun Requirements
Requires 4-8 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight
Water & Climate
Care & Maintenance
Care Guide
Lactuca sativa 'Simpson Elite' requires consistent moisture and well-draining, fertile soil rich in organic matter. Water regularly to maintain even soil moisture, as drought stress can cause the leaves to become bitter and the plant to bolt prematurely. Apply a balanced fertilizer at planting and side-dress with nitrogen every 2-3 weeks during active growth. Mulch around plants to retain moisture and suppress weeds. In hot climates, provide afternoon shade to extend the harvest period and maintain leaf quality.Pruning
Lactuca sativa 'Simpson Elite' does not require pruning in the traditional sense, but regular harvesting of outer leaves encourages continued production. Remove any damaged or yellowing leaves promptly to maintain plant health. If flower stalks begin to form, remove them immediately to prevent the leaves from becoming bitter, though this cultivar's bolt resistance means this is less of a concern than with other varieties.Maintenance Level
lowContainer Growing
✓ Suitable for container growing
Minimum container size: 2 gallons
⚠️ Toxicity Warning
Lactuca sativa 'Simpson Elite' is non-toxic and safe for human consumption when properly grown and washed. All parts of the plant are edible, with leaves being the primary harvest. Generally safe around pets, though large quantities may cause mild digestive upset in some animals.Planting Guide
Planting Methods & Timing
Planting Method
both
Indoor Start
4 weeks before last frost
Direct Sow Timing
early spring, 2-4 weeks before last frost
Days to Maturity
45–55 days
Plant Spacing
8 inches