Pine trees can be grown by germinating the seeds in a plastic bag, germinating the seeds between paper towels, or sowing the seeds directly in the garden. The seeds should typically germinate in a cool location for up to eight weeks before planting.
To grow pine trees from seed, place the seeds inside a sealed plastic bag that contains damp peat moss. Store the bag in the refrigerator for up to seven weeks before sowing in containers. Transplant the seedlings to the garden when they are at least 2 inches in height. Alternately, the seeds can be placed between two layers of wet paper towels in a lidded container in the refrigerator. Keep the seeds moist, and transplant to pots after eight weeks. Seeds can also be sown directly in the ground by soaking the seeds in water for 24 hours before planting in loose soil.