Gourmet Food Source
The most common mistake with growing lettuce is to sow too many seeds at once resulting in an unwelcome glut.
Lettuce like rich well drained soil that is not allowed to dry out. Dig plenty of manure or compost into the ground, rake the surface and finish with a general fertilizer. I prefer to sow lettuce in seed trays, that way I have optimum control over quantity and quality, the necessary thinning out is avoided and I stand a better chance against the onslaught of slugs in the early stages. Allow enough space between the lettuces, particularly the loose leaf varieties (mizuna can grow quite large) and keep watered.