Primary propagation methods for rubia include seed sowing, cuttings, and division. Key factors to success are bright indirect light, stable temperature conditions, and well-draining soil rich in organic matter. Special considerations involve the need for patience as rubia can be slow to germinate and establish. The general difficulty of propagating rubia is moderate due to slow growth and sensitivity to environmental stress. To propagate via cuttings: 1) Take several 4-6 inch cuttings from healthy rubia plants. 2) Remove the lower leaves and dip the base in rooting hormone. 3) Plant the cuttings in a mix of peat and perlite. 4) Maintain high humidity and indirect light. 5) When roots have developed, transplant to individual pots with standard potting mix.