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.
For example, if you are going to grow 24 plants, sow six in the seed tray today, sow six more a week later, etc. Transplant lettuce seedlings into the garden after all danger of frost has past. Ideally, transplant them on a cool or cloudy day. Water well after transplanting. Space plants 12 apart in rows 18 apart. The trick to successfully growing lettuce, is to keep it growing fast, with lots of water and fertilizer.