Data specific to Daylilies (Edit)
AHS link: AHS Daylily Cultivar Info
Hybridizer: Mercer-R.
Year of Registration or Introduction: 1992
Foliage type: Evergreen
Scape height: 30 inches
Bloom size: 6 inches
Bloom time: Early midseason
Plant Traits: Rebloom
Diurnal
Rust Resistance: Shows Resistance
Rust Resistance Decimal Score: 1.7
Bloom Traits: Self
Bloom Form: Single
Color description: dark blue purple 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 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Flowers: Showy
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Division
Ploidy: Tetraploid
Parentage: (Angus McLeod x Royal Heiress) x Strutter's Ball
Child plants: 18 child plants

Image
Common names
  • Daylily

'Round Midnight' was a featured
Plant of the Day for December 14, 2019.
Photo Gallery
Location: Z:5 
Date: Summer 2012
Location: Stoneham MA
Date: July 6, 2020
Location: Bochum, Germany
Date: 2018-07-08
Location: Stoneham MA
Date: July 25, 2022
Location: Bochum, Germany
Date: 2018-07-08
Location: Kent, UK
Date: 2018-07-06
Photo by Hazelcrestmikeb
Location: Bochum, Germany
Date: 2018-07-08
Location: Stoneham MA
Date: July 23, 2021
Location: Stoneham MA
Date: July 12,2020

Photo Courtesy of Homestead Farms Nursery. Used with Permission.
  • Uploaded by Joy
Location: Northern Illinois (Zone 5a)
Date: 2017-07-13
Location: Private Daylily Garden, MI (DKP)
Date: 2005-08-22
Location: Warne, NC
Date: 2019-06-29
Location: Private Daylily Garden, MI (DKP)
Date: 2006-07-29
Location: Private Daylily Garden, MI (DKP)
Date: 2006-07-29
Location: Vermont
Date: 2013-08-01

Photo Courtesy of Saksa Daylily Farm. Used with Permission
  • Uploaded by Joy

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

Date: 2009-12-08
Courtesy of Shaw's Sunshine Gardens
  • Uploaded by vic

Photo Courtesy of Keast Daylily Gardens. Used with Permission.
  • Uploaded by Joy

« Add a new plant to the database

» Search the Daylilies Database: by characteristics or by cultivar name

« See the general plant entry for Daylilies (Hemerocallis)

« Visit the Daylilies forum

» Read our note about daylily rust scores

« The Daylilies Database Front Page

« The Plants Database Front Page

Today's site banner is by Newyorkrita and is called "Siberian Iris China Spring "

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.