Sow at a depth of approx.
0.49 inches (1.25 cm) and aim for a distance of at least
5.85 inches (15.0 cm) between Butterhead lettuce plants. Soil temperature should be kept higher than
5°C / 41°F to ensure good germination.
By our calculations, you should look at sowing All the Year Round about 60 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as All the Year Round is a tender plant.
By our calculations, you should look at planting out All the Year Round about 45 days before your last frost date.