To propagate Coreopsis, you can either start from seed, take stem cuttings, or divide established plants – most commonly by dividing in early spring when the plant is actively growing; all methods allow you to create new Coreopsis plants from an existing one.
Key points about propagating Coreopsis:
Seeds: Sow seeds indoors in late winter or directly in the garden in early spring, ensuring they have light to germinate.
Cuttings: Take stem cuttings in spring, removing lower leaves and dipping the cut end in rooting hormone before planting in a moist potting mix.
Division: Dig up established Coreopsis plants in early spring, carefully separate them into smaller sections with roots, and replant each division.
Important considerations:
When to divide: Divide Coreopsis plants every 2-3 years to maintain vigor.
Cutting selection: Choose healthy, non-flowering stems for cuttings.
Light requirements: Coreopsis seeds need light to germinate, so don’t bury them too deep.