Soil requirements
- A 6–8 inch depth can work; 10–12 inches buffers moisture.
- High nitrogen from lots of compost grows tender leaves. That is appropriate here.
Watering
- Shallow roots dry out in raised beds. Mulch lightly once seedlings are up.
- Water in the morning so leaves dry.
Sunlight
Spring and fall: full sun. Summer: shade cloth or a north-side planting beside taller crops.
Planting
- Sow successive small pinches every 1–2 weeks instead of one giant row.
- In heat, germinate in a cooler spot or pre-chill seed if your variety needs it.
Spacing
- Leaf lettuce: 4–6 inches, or 9–16 per square foot.
- Head lettuce: 10–12 inches, about 1 per square.
Common problems
Bolting
Long days and heat trigger flowers. Harvest earlier, choose bolt-resistant types, provide shade.
Slugs
More of a problem in wet, mulched beds. Hand-pick; avoid slug bait not labeled for food gardens.
Helpful tools
- Row cover or shade cloth in season
- Watering can with a fine rose
Product links will be added when independently researched. See the garden tools hub for buying criteria.
Frequently asked questions
Can I grow lettuce in summer?
In many US regions only with shade, frequent water, and heat-tolerant varieties. Fall sowings are often easier.