Take softwood or semi-ripe stem cuttings in late spring or summer
Cut a healthy non-flowering stem just below a leaf node
Remove the lower leaves and keep one or two pairs of leaves at the top
Dip the cut end in rooting hormone
Insert the cutting into a moist, free-draining propagation mix
Keep the cutting warm, humid, and in bright indirect light
Water lightly to keep the mix evenly moist
Transplant after roots have formed and new growth appears
Layer a flexible stem by bending it to the ground and burying a section under soil
Secure the buried section with a pin or stone
Keep the layered section moist until roots develop
Separate the new plant from the parent once well rooted
Divide established plants only if the clematis type tolerates division
Lift the plant carefully and split the root system into sections with healthy shoots and roots
Replant divisions immediately and water well
Collect seeds from mature seed heads if propagating by seed
Sow seeds in a seed-starting mix and keep them moist
Stratify seeds if required by the species
Grow seedlings on until large enough to transplant