Plant Pulse

Lettuce

Lactuca sativa L.

Lettuce. Sourced figures stay next to their citation. Planting windows are listed for locations that have one. Unsourced fields say coming soon.

Unverified — based on HORDI Crop - Lettuce, Department of Agriculture Sri Lanka, accessed 2026-10-20: https://doa.gov.lk/hordi-crop-salad-leaves/; confirm for your microclimate.

Spacing

In-row spacing
15 cm
Between-row spacing
30 cm

Other sourced figures

Days to first harvest
50–60 days

Planting windows

Up Country Wet Zone

  • Year round: Year round

    Transplant

    Using 50–60 stored days. First harvest is about 50–60 days after planting. Calculated from the stored day count and the planting month. It is not a separate harvest calendar.

    HORDI: throughout the year only in upcountry wet and intermediate zones. Days on the crop are after transplanting. The up-country intermediate zone is named in that sentence and is not a separate location here. This is not a Colombo window.

    Unverified — based on HORDI Crop - Lettuce, Department of Agriculture Sri Lanka, accessed 2026-10-20: https://doa.gov.lk/hordi-crop-salad-leaves/; confirm for your microclimate.

When to plant Lettuce in Up Country Wet Zone

Tools