Butterhead lettuce forms soft, oily-textured leaves in a loose rosette with a mild, sweet flavour. It is a cool-season crop that bolts quickly in summer heat.
See this plant in the collectionSoil pH
6.0 – 7.0
Germination soil temp
4 – 27 °C (optimum 20 °C)
Growing air temp
15 – 21 °C
Spacing
20 – 30 cm apart
Sowing depth
0.3 – 1.2 cm
Sun
4 – 6 hours per day
Water
2.5 cm per week
Days to maturity
55 – 70
Sow as soon as the soil can be worked in spring.
Re-sow every 2 weeks for a continuous supply.
Use shade cloth or taller neighbours during hot spells.
Mulch to keep the soil surface cool and damp.
Cut leaves or whole heads before the stem elongates.
Every figure above comes from these pages.