How to Propagate Caltha ?
Primary propagation methods for caltha include division and seed sowing. Key factors are moist, well-draining soil, partial to full sunlight, and cool to moderate temperatures. Special considerations entail maintaining saturated soil conditions for some types, mimicking their natural marshy habitat. Generally, propagation is moderately easy but may require patience, especially with seeds. Propagate by division in the spring by gently separating the root clumps and replanting. For seeds, surface-sow onto moist soil and keep in a cool, bright place until germination.