How to Propagate Horse-gentian?
To propagate horse-gentian, seeds are commonly used. They require a period of cold stratification to break dormancy, so sowing in fall for natural stratification or refrigerating seeds for several weeks before planting is beneficial. Horse-gentian prefers rich, well-draining soil and partial shade to full sun exposure. It's moderately difficult to propagate as germination can be inconsistent. For seed propagation, follow these steps: 1) Stratify seeds for 4-6 weeks in the refrigerator. 2) Sow seeds in a well-draining soil mix, barely covering them. 3) Keep the soil moist but not waterlogged. 4) Provide light shade and maintain temperatures of 65-70°F. 5) Transplant seedlings when they are sturdy enough to handle. Division can also be used in spring or fall, but this method is more labor-intensive and is best performed on established plants.