How to Prepare Daylily Seeds


If you do not properly prepare your deciduous daylily seeds before you sow them, they are unlikely to germinate. In order to grow, certain types of daylily seeds must first be exposed to cold to mimic the low temperatures of temperate winter soil. This period of cold signals the seed that spring is coming and it must prepare itself to germinate. This cold "winter" period can easily be replicated by stratifying daylily seeds in the refrigerator. Once prepared in this manner, they can be planted outdoors or into seed flats in spring.

Step 1

Fill a polyethylene bag with a few inches of moistened vermiculite.

Step 2

Insert the seeds into the vermiculite so they are covered by an inch or so of vermiculite on all sides.

Step 3

Store the seeds in the refrigerator for eight weeks. Check on the bag periodically to make sure the vermiculite has not dried out. If it has, spray it with water.

Step 4

Remove the bag from the refrigerator and the seeds from the bag. Allow them to dry. Store them in a sealed container at room temperature until you are ready to plant.

Things You'll Need

  • Polyethylene bag
  • Vermiculite
  • Plastic spray bottle
  • Container


  • University of Rhode Island: Daylily Culture
  • University of Florida: Propagation of Landscape Plants
  • University of Minnesota: Propagation
  • University of Kentucky: Hemerocallis (Daylily) Propagation
  • University of Alberta: Seed Catalogue
Keywords: daylily seed, cold stratify, prepare daylily

About this Author

Emma Gin is a freelance writer who specializes in green, healthy and smart living. She is currently working on developing a weight-loss website that focuses on community and re-education. Gin is also working on a collection of short stories, because she knows what they say about idle hands.