Daylilies can be propagated by dividing the clumps in the spring or fall, or by growing them from seed.
Dividing daylilies
- Dig up the daylily clump in early spring or fall, being careful not to damage the roots.
- Gently shake off excess soil. Find the crown, which is the small white core between the leaves and roots.
- Use a sharp knife or gardening spade to divide the clump into smaller sections. Each section should have enough healthy roots.
- Replant the root clumps in fertile soil, and water well. You should see new growth in the same year.
Growing daylilies from seed
- Collect mature seed pods when they turn brown and crack.
- Let the seeds dry in a paper cup.
- Soak the seeds in water for a few hours to plump them up.
- Plant the seeds.
You can also propagate daylilies by tissue culture. This method requires controlling the temperature, humidity, and pH, and sterilizing all substances that come into contact with the plant material.