Buttercrunch, lettuce

1g approx 1000 seeds per package 
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 in cooler seasons if you can provide cloche or greenhouse protection, or even a simple cold frame. Sow some extra early indoors in March for transplanting to the cold frame in April. 
Matures in 67 days. (Open-pollinated seeds)
Butterhead
Soft dark green leaves surround tender heart
Hearts do not become bitter in hot weather
Open pollinated seeds
Matures in 67 days
Lettuce grows best in cool weather in the spring and fall, but it can be grown in the summer, and into fall. Sow short rows every 2-3 weeks following the last average frost date for a continual harvest. Using a cloche, cold frame, or greenhouse over mid-late summer plantings can extend the harvest period right into winter. Optimal soil temperature for germination: 10-22°C (50-72°F). Seeds should sprout in 7-15 days, depending on conditions. Lettuce seeds don’t sprout easily when the soil temperature is over 22°C (72°F) in summer. Get around this by sprouting them indoors in a cool area, or pre-sprout by sprinkling seeds on a damp paper towel and placing it in a plastic bag in the fridge for a few days. In hot weather most lettuce goes to seed rapidly, so have new plantings ready to go, and watch for "good resistance to bolting" in the product description.
Starting
Direct sow or start indoors and transplant. Sow seeds 5mm (¼”) deep, or on the surface of the soil where the soil can be kept evenly moist.. Space or thin heading lettuce to 30cm (12″) apart. Space or thin looseleaf varieties to 20-25cm (8-10″) apart. Space rows for all types 45-90cm (18-36″) apart. Babyleaf lettuce can be planted quite densely, as it is harvested at an immature size. Sowing babyleaf lettuce seeds closely together in narrow rows makes harvesting simpler.