o propagate buttercups, the most common method is by dividing the tubers (also called corms) in the fall, separating smaller “offsets” that grow around the main corm and replanting them individually; you can also propagate them from seed, but this method can take longer and may not produce identical plants to the parent plant. 

Key steps for propagating buttercups by division:

Timing: Wait until after the flowers have faded and the foliage has died back, usually in late spring or early summer. 

Dig up the tubers: Carefully excavate the corms from the soil using a garden fork. 

Separate the offsets: Gently break apart the smaller “offsets” that have grown around the main corm. 

Plant the divisions: Re-pot the separated corms with the pointed end facing downwards, planting them about 2 inches deep in well-draining soil. 

Watering: Water thoroughly after planting and keep the soil consistently moist until new growth appears. 

Important considerations:

Climate: If you live in a colder climate (below USDA zone 7), you may need to store the tubers in a cool, dry place over winter and replant them in spring. 

Seed propagation: If propagating from seed, collect seeds when the pods turn brown and sow them in the fall or early spring. 

Soil requirements: Buttercups prefer well-drained soil and full sun.