Primary methods for propagating nonea include seed sowing, division, and possibly cuttings. Key factors for successful propagation are adequate light, suitable temperature ranges, and well-draining soil. Special considerations might involve stratification of seeds if they require cold treatment to germinate. Propagation of nonea can be moderately difficult due to specific temperature or light requirements. To propagate through seed sowing: 1) Collect seeds after flowering, 2) Sow in well-draining soil mix, 3) Stratify if necessary by chilling for a period, 4) Provide consistent moisture and light, 5) Transplant seedlings once mature.