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.
Apply the fertilizer in a row 12 inches out from the base of the plants on either side. Sprinkle the fertilizer evenly in each row, applying half to each side. Water the bushes well after applying the fertilizer to speed root absorption of the nitrogen. Avoid splashing the water onto the underside of the leaves.