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Hemerocallis 'Joan Senior'

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Photo Courtesy of Walters Gardens, Inc.
 Common Name: Daylily
    • 5", elegant creamy white blossoms with ruffled, recurved petals; one of the most popular whites

 

    • Pale yellow watermark and a soft yellow-green throat

 

    • Tepals are ruffled and slightly recurved; sculpted petals with raised veining

 

    • Excellent bud count on well-branched scapes

 

    • Foliage is evergreen in most climates

 

    • Blooms in early to midsummer; rebloomer

 

    • Extended bloom--flowers last at least 16 hrs. each

 

    • Diploid

 

  • Awards: HM '81, AM '84, LAA '90

Daylilies can survive many harsh conditions that other plants cannot including: polluted city environments, slopes, poor and dry soils, near pavement that is salted in winter, and under Black Walnut trees (not affected by juglone).

Breeder: Durio

Origin: Not Native to North America

Characteristics:



Height:
  30 Inches
Spread:
  18-24 Inches
Flower Color:
  White Shades
Foliage Color:
  Green shades
Hardiness Zone:
3,4,5,6,7,8,9
Find Your Zone
Sun or Shade?:
  Full sun (> 6 hrs. direct sun)
  Part shade (4-6 hrs. direct sun)
Wet or dry?:
  Low water needs
  Average water needs
Want to see wings?:
  Attracts butterflies
  Attracts hummingbirds
Need critter resistant plants?:
  Rabbit resistant
How fast should it grow?:
  Medium
When should it bloom?:
  Midsummer
  Rebloomer
How's your soil?:
  Poor Soil
  Average Soil
  Fertile Soil
Sweet or Sour Soil?:
  Acidic Soil (pH < 7.0)
  Neutral Soil (pH = 7.0)
  Alkaline Soil (pH > 7.0)
What's your garden style?:
  Container/Patio
  Eclectic

Attributes:

Border plants
Container
Evergreen
Mass Planting
Salt Tolerant
Easy to grow

Awards:

  American Hemerocallis Society Honorable Mention (AHS first stamp of approval) 1981
  American Hemerocallis Society Award of Merit (Outstanding beauty and performance over a wide area of the country) 1984
  American Hemerocallis Society Lenington All-American Award (Best performer in all areas of the country) 1990
  American Hemerocallis Society Popularity Poll (Conducted annually to determine the favorite daylilies among AHS members from each region of the country)

Homeowner Growing & Maintenance Tips:

Daylilies are some of the easiest perennials to grow and are a good choice for any gardener, from the beginner to the professional. These are tough, adaptable plants that will grow in any soil, from normal to slightly wet to dry. Older varieties are able to bloom if planted in partial shade, but most of the newer introductions need full sun for best performance. Likewise, older varieties tend to spread more rapidly than the newer hybrids.

All varieties can be divided every 3-4 years by digging up the entire clump and dividing it into smaller pieces with a minimum of 3 eyes each. This can be done in either spring or fall. Plants should be deadheaded for cosmetic purposes, but in most cases this will not extend the bloom time.


Companions:

Common/Botanical Name
Zones  
Alchemilla mollis
Common Name: Lady's Mantle
3,4,5,6,7
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Iris sibirica 'Caesar's Brother'
Common Name: Iris-Siberian
3,4,5,6,7,8,9
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Delphinium 'Pink Punch'
Common Name: Delphinium-Hybrid Bee
3,4,5,6,7
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Perovskia atriplicifolia
Common Name: Russian Sage
4,5,6,7,8,9
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Phlox paniculata 'Glamour Girl' PP25778
Common Name: Phlox-Tall Garden
4,5,6,7,8
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Campanula glomerata 'Genti Blue'
Common Name: Bellflower-Clustered
5,6,7,8
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History:

Daylilies were eaten as food in China and Japan.

While every effort has been made to describe this plant accurately, please keep in mind that the height, bloom time, and color may differ in various climates throughout the country. The description of this plant was written based on our experience growing it in Michigan (USDA hardiness zone 5) and on numerous outside resources.