Data specific to Daylilies (Edit)
AHS link: AHS Daylily Cultivar Info
Hybridizer: Powell-L.K.
Year of Registration or Introduction: 1983
Foliage type: Dormant
Scape height: 33 inches
Bloom size: 9 inches
Bloom time: Midseason
Plant Traits: Rebloom
Bloom Traits: Self
Bloom Form: Single
Color description: yellow self with green throat

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Flowers: Showy
Fragrant
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Division
Ploidy: Tetraploid
Parentage: Monster x Hudson Valley
Child plants: 6 child plants

Image
Common names
  • Daylily

'Valley Monster' was a featured
Plant of the Day for October 27, 2021.
Photo Gallery
Location: RHS Garden Wisley
Date: 2023-07-22
Photo by blue23rose
Location: My garden in northeast Texas
Date: 2021-07-16
Excellent grower, great color
Location: Little garden of Big Dreams, Dayton KY

Photo Courtesy of Homestead Farms Nursery. Used with Permission.
  • Uploaded by Joy
Location: Private Daylily Garden, MI (DKP)
Date: 2005-07-20
Location: New York Botanical Gardens Bronx NY
Date: July 2014
Full sun.

Photo Courtesy of Crossview Gardens. Used with Permission.
  • Uploaded by Joy
Location: Private Daylily Garden, MI (DKP)
Date: 2005-07-20

Date: 2009-07-31
Photo Courtesy of Nova Scotia Daylilies Used with Permission
  • Uploaded by vic

Date: 2012-01-25
Photo Courtesy of Walnut Hill Gardens Used With Permission. Unaut
  • Uploaded by vic
Location: Private Daylily Garden, MI (DKP)
Date: 7-2008
Location: Private Daylily Garden, MI (DKP)
Date: 7-2008

Image Courtesy of Monches Farm Used with Permission
  • Uploaded by vic

Photo Courtesy of Something New Gardens. Used with Permission.
  • Uploaded by Joy

Posted with permission and photographed by Marianne Joordens http
  • Uploaded by vic

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