Lettuce Spacing in a Raised Bed (Heads per Bed)
Estimate how many lettuce plants fit in a raised bed using spacing, and see a planning yield range.
Worked example
Example: 4×4 ft bed at 8" spacing. Length=48", width=48". Plants=floor(48/8)×floor(48/8)=6×6=36 plants. If per-plant yield is 0.25–0.75 lb, bed range ≈ 9–27 lb.
Why the numbers vary
Leaf lettuce can be denser, while large head lettuce needs more room. Heat can cause bolting, cutting the season short.
Use the calculator Opens prefilled state.
FAQ
Is 8 inches spacing right for all lettuce?
No. Romaine and head lettuce often need wider spacing; leaf mixes may be tighter.
Why is lettuce yield shown in pounds?
The dataset uses lb for a US-first calculator; metric equivalents are displayed when needed.
Do I need 12 inches of soil for lettuce?
Not always; lettuce roots are shallow, but deeper soil can help with moisture stability.
How deep should soil be for lettuce?
Lettuce can grow in 6–8 inches, but 10–12 inches improves water buffering and reduces heat stress in summer.
Sources
- Dataset values are estimates (see /data/crops.json).
- Check a local Extension lettuce planting guide (URL PLACEHOLDER).
Related
Estimates only. If you need accuracy, validate depth, compaction, and spacing with your local guidance.