Data specific to Daylilies (Edit)
Hybridizer: Kaempfer
Year of Registration or Introduction: 1712
Foliage type: Dormant
Scape height: 36 inches
Bloom time: Midseason
Bloom Traits: Eye or Band
Bloom Form: Double

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Dry
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Flowers: Showy
Uses: Will Naturalize
Propagation: Other methods: Division
Ploidy: Triploid

Image
Common names
  • Daylily
Also sold as:
  • Kwanzo

'Kwanso' was a featured
Plant of the Day for April 8, 2018.
Photo Gallery
Location: Dayton High School, Dayton KY
Location: Dallas,Texas
Date: 2020-6
Location: Illinois
Date: 2011-07-15
Location: Ontario, Canada
Date: 2006-08-03
Location: Kalama, Wa
Date: 2011-08-06
  • Uploaded by Joy
Location: Upstate New York
Location: Bochum, Germany
Date: 2019-07-27
Location: Indiana  Zone 5
Date: 2007-06-29
an old favorite from my Grandma's garden
Location: Oxfordshire, England
Date: 2016-07-10
Location: Bochum, Germany
Date: 2017-07-08
Location: North Carolina USA
Date: 2020-06-30
A fascinating bloom to watch unfold...
Location: Western Kentucky
Date: July 2015
End of a long hot day
Location: Jacksonville, TX
Date: 2014-07-02
Photo by blue23rose
Location: West Jefferson, North Carolina
Date: 2022-07-05
Location: my garden in Dawsonville, GA (zone 7b north Geogia mountains)
Date: 2022-07-04
Location: Germany/ Brandenburg
Date: 2005-10-25
SAMSUNG DIGITAL CAMERA
Location: West Jefferson, North Carolina
Date: 2019-07-07
Location: Duluth, MN (4b)
Date: 2021-07-25
Location: Duluth, MN (4b)
Date: 2021-07-26
Location: South Carolina
Location: My garden
Date: 2020-05-14
Location: Winston-Salem, NC
Date: 2010-07-15
To say 'Kwanso' is vigorous would be a considerable understatemen
Location: wa
Would love to try this in AZ
Photo by Newyorkrita
Location: Bochum, Germany
Date: 2018-07-01
Location: Southern Michigan
Photo by MaryDurtschi
Photo by pretty_paws_29
Location: Jacksonville, TX
Date: 2014-07-02
Location: my garden in Dawsonville, GA (zone 7b north Geogia mountains)
Date: 2021-07-12
Location: Meadowlark Botanical Garden, Fairfax, Virginia (May 2022)
Date: 2022-05-01
variegated
Location: Jacksonville, TX
Date: 2014-06-21
Location: In my garden. Poland.
Photo by pinkiris
Location: Belle Isle, Detroit, MI
Date: 2015-07-17
Location: Robertsdale, AL
Date: 2022-06-07
Mid day
Location: West Jefferson, North Carolina
Date: 2020-07-24
Location: In a relative’s garden in BC Canada 
Date: 2023-07-26
Location: Hamilton Square Perennial Garden, Historic City Cemetery, Sacramento CA.
Date: 2015-06-21
Zone 9b. 30 inch scapes.
Location: Middle Tennessee
Date: 2014-07-17
Location: Bochum, Germany
Date: 2018-07-01
Location: Raleigh NC
Date: 2018-06-16
Location: Home garden
Date: 2020-07-22
By KYgal
Location: In my zone 8 garden
Date: June 18th, 2014
Location: Fairfax, VA | June, 2022
Location: Hood, Alabama 
Date: 2023-06-06
Location: Elberfeld, Indiana
Date: 2011-06-30
Location: Elberfeld, Indiana
Date: 2011-07-01
Photo by Samlav
Location: my garden in Dawsonville, GA (zone 7b north Geogia mountains)
Date: 2021-07-12
Location: Robertsdale, AL
Date: 6/15/21
Afternoon
Location: Lebanon, Tennessee
Date: 2014-06-22
Beautiful when mixing with Lucifer Crocosmias
Location: Jacksonville, TX
Date: 2014-06-21
Location: Allentown, Pennsylvania
Date: 2015-06-28
Location: Manitoba, Canada
Date: 2016-07-25
Location: all photos from my gardens
Date: 2018-06-11
Location: Belle Isle, Detroit, MI
Date: 2015-07-17
Location: Robertsdale, AL
Date: 6/7/22
Mid day
Location: Pacific Northwest zone 8
Date: Jul16, 2011
Location: New Jersey
Date: 2020-07-08
Location: Germany/ Brandenburg
Date: 2005-10-09
SAMSUNG DIGITAL CAMERA
Photo by PeggyC
Location: Perth, Western Australia
Date: 18 December 2015
Bloom
Photo by Newyorkrita
Location: My Yard, zone 6
Date: 2019-07-29
Location: Plano, TX
Date: 2017-05-19
Location: Woodbridge , Va
Date: 2017-07-03
two blooms side by side
Location: Jacksonville, TX
Date: 2014-07-07
Location: Pacific Northwest, zone 8
Date: 2013-07-08
Location: Jacksonville, TX
Date: 2014-07-07
Location: Long Island, NY 
Date: 2013-07-03
Location: Plano, TX
Date: 2013-02-26
Newly emerging plants
Location: Robertsdale, AL
Date: 6/15/21
Afternoon
Location: Belle Isle, Detroit, MI
Date: 2015-07-17
Location: Belle Isle, Detroit, MI
Date: 2015-07-17
Location: Germany/ Brandenburg
Date: 2005-10-25
SAMSUNG DIGITAL CAMERA
Location: Plano, TX
Date: 2013-06-25

Date: 2012-03-08
Photo Courtesy of Walnut Hill Gardens Used With Permission. Unaut
  • Uploaded by vic
Location: Duluth, MN (4b)
Date: 2017-07-30
Location: Youngsville, LA
Date: 2017-05-12
By tabbycat
Location: My garden
Date: 2019-05-16
Location: Dreamy Daylilies - Chatham-Kent, Ontario   5b
Date: 2013-07-18
Location: my garden 
Date: 2014-07-07

Date: 2011-07-15
Location: my garden - north end/rect. bed
Date: 2015-08-12
Photo by CLUSIANA
Location: Jacksonville, TX
Date: 2014-07-07
Location: In my zone 8 garden
Date: 2012-06-03
Location: Robertsdale, AL
Date: 6/15/21
Afternoon
Location: Robertsdale, AL
Date: 6/15/21
Location: West Valley City, UT
Date: 2012-07-24
Location: West Valley City, UT
Date: 2012-07-20

Photo Courtesy of Walnut Hill Gardens Used With Permission. Unaut
  • Uploaded by vic
Location: In my garden. Poland.
Location: Belle Isle, Detroit, MI
Date: 2015-07-17
Location: Middle Tennessee
Date: 2014-08-04
Location: Plano, TX
Date: 2013-06-22
Location: my garden 
Date: 2013-05-29
Location: Kalama, Wa
Date: 2011-08-12
  • Uploaded by Joy
Location: Kalama, Wa
Date: 2011-08-12
  • Uploaded by Joy
Location: my garden 
Date: 2016-07-11
Location: Mountain City, Tx
Date: 2016-03-17
Location: Bullard, Texas
Date: 2017-06-11
This plant is tagged in:
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Comments:
  • Posted by Newyorkrita (North Shore, Long Island, NY ) on Sep 11, 2013 4:32 PM concerning plant:
    Kwanso may have a stunning flower (and that it is) but you do not want to plant Kwanso in your daylily beds or anywhere near them as it will take over everything. When trying to dig out Kwanso even the smallest bit of root left means it will return again.

    I had one pop up on one of my late bloomer beds. I very carefully dug up the fans and all the roots. Two years later, here it is blooming again. The plant had regrown from whatever small piece I missed. Again I dug it out. Hope I got it all this time.
  • Posted by Calif_Sue (Sebastopol, CA - Zone 9a) on Oct 27, 2011 1:17 PM concerning plant:
    A vigorous grower that will spread like a ground cover, can be used to fill troubled spots/hard to grow spaces. Can also be used to line driveways, alongside fences, roadsides and in ditches.
    Keep away from other clump forming daylilies.


    http://historicdaylily0.tripod...
  • Posted by MLR11 (Chatham, VA - Zone 7a) on Jul 8, 2022 11:02 AM concerning plant:
    So many people confuse "Flore Pleno" with Kwanso. Kwanso has a double flower that tends to be messy looking or scrambled. Flore Pleno has a very neat looking triple layer of petals (hose in hose). Some people say the plants are invasive, they aren't in my garden.
  • Posted by tabbycat (Youngsville, LA - Zone 9b) on Jun 9, 2018 9:57 PM concerning plant:
    I have the 'Kwanso' with variegated foliage I received Sept. 2017 in a daylily trade. It stands out amongst the 20 other varieties growing around it because of the unusual cream and green striped foliage. The flower is the same as my regular 'Kwanso', tall and double. The foliage is evergreen here in zone 9 and the plant blooms in mid season, June/July, like my other 'Kwanso'.
  • Posted by Cyclaminist (Minneapolis, Minnesota - Zone 5a) on May 1, 2016 12:47 AM concerning plant:
    We had a daylily growing thickly in several places in our yard. I believe it is double when it actually flowers, so must be this cultivar, but it doesn't bloom very often. Now most of it is gone, because it doesn't bloom enough and spreads way too much.
Plant Events from our members
piksihk On June 25, 2022 Bloomed
piksihk On May 7, 2020 Bloomed
piksihk On May 15, 2019 Bloomed
piksihk On June 22, 2017 Bloomed
HW round bed
piksihk On May 28, 2016 Bloomed
piksihk On August 3, 2015 Bloomed
rect. bed - north end
piksihk On June 1, 2015 Bloomed
Cat On July 3, 2014 Obtained plant
crittergarden On July 8, 2015 Bloomed
Verac On June 21, 2018 Bloomed
First flower bloomed today.
mom2cjemma On June 18, 2020 Miscellaneous Event
Scape
mom2cjemma On June 24, 2019 Miscellaneous Event
Scapes
mom2cjemma On April 29, 2019 Transplanted
mom2cjemma On July 11, 2018 Bloomed
mom2cjemma On June 15, 2018 Miscellaneous Event
Mellis0821 On June 20, 2020 Bloomed
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