How to Propagate a Daylily

Overview

Daylilies provide summer color to the garden. These flowers are not true lilies but they do produce lily-like flowers in a variety of colors. Propagating daylilies is done by either division on seeds. While the seeds readily germinate, they do not always grow into plants true to the parent. Daylilies grow from root sections that are cut apart at dividing. This processes produces two identical plants. If you need a large number of daylilies, dividing may not be sufficient, so choose a propagation method that fits with your overall garden plan.

Seed Propagation

Step 1

Fill a seedling flat with a well-drained potting soil. Water the soil until it is evenly moist throughout and the excess liquid begins to drain from the bottom of the flat.

Step 2

Sow daylily seeds on the soil surface, spacing them 2 inches apart in all directions. Cover the seeds with a 1/8-inch layer of potting soil then place the flat inside a plastic bag.

Step 3

Set the seedling flat in a shaded or dimly lit area. Water the soil if it begins to dry or condensation stops forming on the inside of the bag.

Step 4

Remove the bag once seedlings sprout, approximately 10 to 14 days after sowing. Place the flat in a brightly lit window and water when the soil surface begins to feel dry.

Step 5

Transplant the seedlings to separate 4- to 5-inch diameter pots once the seedlings reach 4 to 6 inches tall. Fill the pot with the same potting soil then left the seedlings from the flat by their top leaves. Plant them in the pots at the same depth they were growing at in the flat.

Divisions

Step 1

Loosen the soil around the daylilies as soon as they stop flowering in late summer, using a spading fork. Slide a trowel under the daylilies and lift them out of the garden bed.

Step 2

Cut back the remaining foliage on the daylilies with a pair of shears. Leave 6 inches of foliage attached to the roots.

Step 3

Cut apart the root with a sharp, clean knife. Leave a set of foliage and some trailing roots on each division piece.

Step 4

Replant the divisions into the garden bed at the same depth it was previously growing at. Space the daylilies 18 to 24 inches apart in all directions.

Step 5

Water the divisions immediately after replanting, moistening the soil down to a 6-inch depth.

Things You'll Need

  • Seedling flat
  • Potting soil
  • Seeds
  • Plastic bag
  • Pots
  • Spading fork
  • Trowel
  • Shears
  • Knife

References

  • University of Florida Extension: Daylilies for Florida
  • Purdue University Extension: Dividing Daylilies
Keywords: propagating day lilies, sowing daylily seeds, dividing daylily plants

About this Author

Jenny Harrington has been a freelance writer since 2006. Her published articles have appeared in various print and online publications, including the "Dollar Stretcher." Previously, she owned her own business, selling handmade items online, wholesale and at crafts fairs. Harrington's specialties include small business information, crafting, decorating and gardening.