Sow indoors in flats with good potting soil year round. Transplant into the garden 3-4 weeks after sprouting. Alternatively, direct sow March- September. In our area, lettuce can grow through winter when given protection. Sow in succession for continual harvest.
Collect seeds when flowers have become downy like dandelions. Cut seedheads off and place upside down in a bag for a few days to dry. Shake seedheads against the sides of a bucket, rub down off of seeds, and winnow to clean.