Propagation of ginkgo, an ancient tree species, is most successful with seeds. Key factors include stratification, which simulates winter conditions, good soil drainage, and adequate sunlight. Special techniques involve soaking seeds to mimic natural digestion, essential for germination. The difficulty level is moderate to high due to slow germination and a need for careful management. To propagate: (1) Collect ripe seeds in autumn, (2) Clean off the flesh, (3) Stratify seeds in moist sand for 1-2 months, (4) Sow in well-draining soil at 70°F, (5) Keep soil consistently moist, (6) Wait for germination, which may take up to one year.