To propagate Anemone Blanda, the most common method is to lift and divide the corms (tubers) in the fall after the foliage has died back, separating smaller offsets from the main clump and replanting them immediately in a new location; you can also store them in a cool, dry place to plant later in the autumn or spring if needed. 

Key points about propagating Anemone Blanda:

When to divide: Best done in autumn after the leaves have died down. 

Division method: Carefully dig up the corm clump, gently separate smaller corms or offsets from the main mass, discarding any that are soft or damaged. 

Planting the divided corms: Replant the separated corms at the same depth they were originally planted, ensuring good drainage. 

Soaking before planting: Some gardeners recommend soaking the corms in water overnight before planting to re-hydrate them. 

Other propagation methods (less common):

From seed: You can sow Anemone Blanda seeds directly in the garden in the fall, but germination can be inconsistent and may take a few years to flower. 

Important consideration:

Anemone Blanda readily self-seeds in favorable conditions, so you may find new plants popping up naturally in your garden.