To propagate Ligularia, the most common and recommended method is by dividing the plant clump in early spring or late summer, using a sharp knife to separate the root crown into smaller sections with shoots, and then replanting each division individually; you can also try sowing seeds in a cold frame during spring or autumn, though this method can be less reliable.
Key points about propagating Ligularia:
Division is best: This is the easiest and most successful way to propagate Ligularia, as it readily forms clumps that can be divided.
Timing: The ideal time to divide is either early spring when new growth emerges or late summer when the plant is nearing dormancy.
Process: Dig up the entire plant, exposing the root system.
Use a sharp knife or spade to carefully cut the root crown into sections, ensuring each division has multiple shoots and roots. Plant the divisions in well-draining soil, spacing them appropriately. Water thoroughly after planting.
Seed propagation (less common):
Sow seeds: Sow Ligularia seeds in a cold frame or seed tray in spring or autumn.
Germination conditions: Keep the seed starting mix moist and provide adequate light, as seeds need light to germinate.
Potential challenges: Seed propagation can be less reliable as germination rates may vary.