How far apart does lettuce need to be planted?
Likewise, how far apart do you plant iceberg lettuce?
Sow seed 1/8 inch deep, 1 inch apart in rows 12 to 18 inches apart. When plants have two or three true leaves, thin to 12-inch spacings for crisphead varieties, 6 to 10 inches for other types. You can also lightly broadcast seed (particularly of looseleaf varieties) in a patch instead of a row.
Likewise, how long does lettuce take to grow?
45 to 55 days
If you want to continue growing lettuce, cut the romaine heads off right above the soil line with a sharp knife, leaving the base and root system intact. Otherwise, uproot the whole plant. Instead of composting the messy insides of tomatoes, save the seeds and plant them.