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Hemerocallis, or the daylily, is a favorite variety of perennial in the family Hemerocallidaceae.[1] Stout was one of the early propagators of the daylily. It has taken on a great deal of horticultural interest and has seen many breeders enter into the field. The American Hemerocallis Society has over 8,000 members, and there are over 500 breeders of note in the United States alone. The author has been breeding for five years, which is a small amount of time for the typical breeder.

 

Stout recognizes thirteen species, with H. flava, H. fulva, H. minor, being just a few. The following table lists the thirteen species as noted by Stout. There are, however, over five thousand cultivars, many being now no longer propagated.

 

Species

Characteristics

H. nana

Small scape with flat leaves

H. plicata

Small scape with curved leaves

H. forestii

Small scapes with bracts somewhat herbaceous

H. flava

Bright yellow, odorous flower, fleshy and enlarged root

H. minor

Small flowers, bright yellow, roots slender, crowns compact.

H. thunbergii

Flower pale yellow, cylindrical roots.

H. citrina

Pale yellow and fleshy roots, flowers nocturnally.

H. fulva

Red or red orange flower, coarse foliage, robust plant.

H. aurantiaca

Lightly orange-red with evergreen foliage.

H. exaltata

Orange flowers, erect scapes.

H. multiflora

Late flowering orange flowers of small size. Finely branched with fleshy roots.

H. humortierii

Scape is branched, flower is bright orange. Roots are fleshy.

H. middendorffii

Scape branched, flower is bright orange. Roots are cylindrical

 

The growing of the Hemerocallis is divided between breeders and propagators. Some do both some are separate. The author does both. The author has over 180 different cultivars and generates about thirty new ones each year. Of the thirty, 20 may be kept for a period of time to see if they should be propagated. There are three growing areas in a combined operation.

In this section we discuss the following growing options:

Seed Generation:

Seed Growing:

Tissue Culture:

Other Growing Methods:

Experience:

References:

 


 

[1]Dahlgren, pp. 176-178. Dahlgren places the Hemerocallis in a separate family, unlike Cronquist who places it in Lilliaceae. Unlike the lily, the Hemerocallis has short rhizomes and fleshy, swollen, sometimes nearly fusiform roots, and does not have a bulb.  This morphological difference is, the author believe, a key differentiator in its ability to be propagated differently from the bulb plants in Lilliaceae.

 

                                                                                          

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