Made of black or white plastic, the Low Profile Reader (2001 or 2001W) can be flush or surface mounted, bracketed, or concealed behind glass, plaster, or other nonmetal surfaces.
Growing Head Lettuce. 1  1. Choose a head lettuce variety for indoor planting. 2  2. Prepare seed trays. 3  3. Sow the seeds 4-6 weeks before the last spring frost.  4. Give the seeds plenty of sunlight and 1  water. 5. Transplant into the garden.  6. Fertilize the lettuce three weeks after 1  transplanting. 7. Cut mature leaves.
Place an additional 3 to 4 inches (7.6 to 10.2 cm) of organic compost or mulch. This will keep the seeds moist and prevent weeds from forming. 1  If you are planting several varieties of lettuce in your garden, make sure you plant the varieties a minimum of 12 feet (3.66 m) apart to prevent cross-pollination.lace an additional 3 to 4 inches (7.6 to 10.2 cm) of organic compost or mulch. This will keep the seeds moist and prevent weeds from forming. 1  If you are planting several varieties of lettuce in your garden, make sure you plant the varieties a minimum of 12 feet (3.66 m) apart to prevent cross-pollination.