Lettuce Butterhead ‘Mira’ – Irish Seed

‘Mira’ is a red butterhead lettuce (Lactuca sativa) which produced the largest heads in a winter trial in 2025. Leaves are soft and tender and form a loose head. The head can be harvested all at once or leaves can be taken from the outside over multiple harvests. It is a medium early variety. Earlier maturing varieties of lettuce tend not accumulate as much nitrates as slower growing varieties.

Lettuce is best grown as transplants. Can be started off in modular trays from as early as January if you have a heated propagator (be careful to not let lettuce seed get above 23°C as the seed can go dormant then and not germinate). Sow seeds very shallowly or just sit on top of the compost and water gently. From spring no additional heat should be required. Butterhead lettuces are ideal for winter sowing and can be seeded until the end of September.

Average 100 seeds per packet.