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.
1 Lettuce grown this way needs between 15 and 18 hours of light every day. 2  If you are growing your lettuce indoors, you can place the bucket underneath a fluorescent light. 3  Plants that are grown in a hydroponic setting require water and nutrient support just like soil-based plants.