Primary propagation methods for hazels include seed sowing and hardwood cuttings. Successful propagation requires well-drained soil, cool stratification for seeds, and partial shade for cuttings. Layering is also effective but takes longer. The difficulty is moderate, with stratification being a challenge for beginners. To propagate from seed, stratify for 2-4 months, sow in pots, and expect germination in spring. For cuttings, select healthy branches in late fall, plant in moist, sandy soil, and maintain high humidity until roots develop.