We love the flavour and delicate texture of the leaves for lettuce wraps! Buttercrunch butterhead lettuce seeds are a Bibb type lettuce that forms a tight little rosette of soft, dark-green, upward-facing leaves surrounding a tender, pale centre. The small hearts don't become bitter in hot weather. Later plantings stand well into fall and make good growth in spring cold frames. Buttercrunch lettuce is a good candidate for growing all winter if you can provide cloche or greenhouse protection, or even a simple cold frame. Sow some extra early indoors in February for transplanting to the cold frame in March.