Planting lettuce seeds is a straightforward process that can yield a continuous supply of fresh, crisp leaves. Here's a guide on how to plant lettuce seeds:

1. Choosing Varieties: Select lettuce varieties based on your preferences and local climate. There are various types, including butterhead, romaine, and loose-leaf lettuce.

2. Timing: Lettuce is a cool-season crop. Plant seeds in early spring for a spring harvest or in late summer for a fall harvest. In warmer climates, consider planting during the cooler months.

3. Soil Preparation: Prepare well-draining soil rich in organic matter. Lettuce prefers slightly acidic to neutral soil with a pH of 6.0-7.0. Work in compost to improve fertility.

4. Planting Depth: Sow lettuce seeds directly into the soil or in containers, planting them about 1/4 to 1/2 inch deep. Gently press the soil over the seeds.

5. Spacing: Space the rows 12-18 inches apart for head-forming varieties and 6-12 inches for loose-leaf varieties. Thin the seedlings as they grow to maintain proper spacing.

6. Watering: Keep the soil consistently moist. Watering is crucial, especially during dry periods. Use a fine mist or a soaker hose to prevent disturbing the delicate seeds.

7. Sunlight: Lettuce prefers partial shade but can tolerate full sun. Ensure they receive at least 4-6 hours of sunlight per day.

8. Temperature: Lettuce germinates best at temperatures between 60-68°F (15-20°C). Consider using shade cloth in warmer climates to protect the lettuce from excessive heat.

9. Fertilizing: Use a balanced fertilizer or incorporate well-rotted compost into the soil before planting. Side-dress with a nitrogen-rich fertilizer during the growing season.

10. Thinning: Once the seedlings have grown a few inches tall, thin them to the recommended spacing to allow proper airflow and prevent overcrowding.

11. Succession Planting: Extend your harvest by practicing succession planting. Sow new batches of seeds every few weeks to ensure a continuous supply of fresh lettuce.

12. Harvesting: Harvest lettuce leaves when they reach the desired size, typically 4-6 inches tall for loose-leaf varieties and when heads are firm for head-forming varieties. Cut the leaves at the base with scissors or a knife.

By following these steps, you can enjoy a steady supply of homegrown lettuce throughout the growing season.