Daylily 'Kwanso'


Family: Hemerocallidaceae (hem-er-oh-kal-id-AY-see-ee) (Info)
Genus: Hemerocallis (hem-er-oh-KAL-iss) (Info)
Cultivar: Kwanso
Synonym:Hemerocallis var. kwanso
Synonym:Hemerocallis fulva flore pleno
» View all varieties of Daylilies


36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)


24-36 in. (60-90 cm)

36-48 in. (90-120 cm)


USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:


Propagation Methods:

By dividing the rootball

Bloom Time:

Midseason (M)

Flower Size:

Large (more than 4.5" diameter)

Blooming Habit:

Diurnal (diu.)

Flower Type:


Bloom Color:


Color Patterns:


Flower Fragrance:

No fragrance

Foliage Habit:

Dormant (dor.)



Awards (if applicable):

Stout Silver Medal

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

This plant is suitable for growing indoors


This plant has been said to grow in the following regions:

, (3 reports)

Arley, Alabama

Atmore, Alabama

Enterprise, Alabama

Madison, Alabama

Trinity, Alabama

Vincent, Alabama

Anchorage, Alaska

Clinton, Arkansas

Felton, California

Fresno, California

Long Beach, California

Washington, District Of Columbia

Citra, Florida

Jacksonville, Florida

Keystone Heights, Florida

Molino, Florida

Cordele, Georgia

Dallas, Georgia

Hawkinsville, Georgia

Makanda, Illinois

Moline, Illinois

Mount Prospect, Illinois

Nilwood, Illinois

Round Lake, Illinois

Williamsville, Illinois

Fredericksburg, Indiana

Greenville, Indiana

Kimmell, Indiana

Solsberry, Indiana

Cedar Rapids, Iowa

Iowa City, Iowa

Nichols, Iowa

Derby, Kansas

Shawnee Mission, Kansas

Barbourville, Kentucky

Bellevue, Kentucky

Calvert City, Kentucky

Ewing, Kentucky

Smiths Grove, Kentucky

Alexandria, Louisiana

Coushatta, Louisiana

Leesville, Louisiana

Mandeville, Louisiana

Metairie, Louisiana

Morgan City, Louisiana

Trout, Louisiana

Youngsville, Louisiana

Durham, Maine

Falmouth, Maine

Lebanon, Maine

Baltimore, Maryland

Edgewater, Maryland

Hughesville, Maryland

Mechanicsville, Maryland

Fitchburg, Massachusetts

Reading, Massachusetts

West Barnstable, Massachusetts

East Tawas, Michigan

Fairfax, Minnesota

Minneapolis, Minnesota (2 reports)

Saint Cloud, Minnesota

Saint Paul, Minnesota

Madison, Mississippi

Marietta, Mississippi

Waynesboro, Mississippi

Brunswick, Missouri

Kansas City, Missouri

Colpitts Settlement, New Brunswick

Auburn, New Hampshire

Greenfield, New Hampshire

Bloomingdale, New Jersey

Caldwell, New Jersey

Fanwood, New Jersey

Roswell, New Mexico

Beacon, New York

Buffalo, New York

Cicero, New York

Croton On Hudson, New York

Hillsdale, New York

Orchard Park, New York

Pittsford, New York

Valley Stream, New York

East Bend, North Carolina

Elizabeth City, North Carolina

Graham, North Carolina

Greenville, North Carolina

Morehead City, North Carolina

New Bern, North Carolina

Winston Salem, North Carolina

Belfield, North Dakota

Medora, North Dakota

Cincinnati, Ohio (4 reports)

Columbus, Ohio

Dundee, Ohio

Franklin, Ohio

Granville, Ohio

Hamilton, Ohio

Kent, Ohio

Toledo, Ohio

Hulbert, Oklahoma

Jay, Oklahoma

Tulsa, Oklahoma

Dallas, Oregon

Portland, Oregon

Allentown, Pennsylvania

Watsontown, Pennsylvania

Wilkes Barre, Pennsylvania

Wynnewood, Pennsylvania

Chapin, South Carolina

Conway, South Carolina

Murrells Inlet, South Carolina

Myrtle Beach, South Carolina

North Augusta, South Carolina

Saint Helena Island, South Carolina

Cordova, Tennessee

Greeneville, Tennessee

Kingsport, Tennessee

Knoxville, Tennessee

Pocahontas, Tennessee

Sweetwater, Tennessee

Austin, Texas

Baytown, Texas

Belton, Texas

Colmesneil, Texas (2 reports)

Fort Worth, Texas

Lufkin, Texas

Mc Kinney, Texas

Montgomery, Texas

Spring, Texas

Vidor, Texas

Willis, Texas

Winnsboro, Texas

Blacksburg, Virginia

Doswell, Virginia

Fairfax, Virginia

Stuarts Draft, Virginia

Bainbridge Island, Washington

Cle Elum, Washington

Kalama, Washington

North Sultan, Washington

Olympia, Washington (2 reports)

Liberty, West Virginia

Newell, West Virginia

Weston, West Virginia

Delavan, Wisconsin

Marion, Wisconsin

New Lisbon, Wisconsin

Oconomowoc, Wisconsin

show all

Gardeners' Notes:


On Jul 7, 2017, IBIS_208 from Edgewater, MD wrote:

I believe I have this daylily, only as the Flore Pleno instead of Kwanso . . . if what I'm reading is correct. I dug one out of a tidal creek in Maryland maybe 7 years ago, after seeing the triple bloom on it. It certainly is hardy, if not aggressive. I have at least 15 plants from the original one or two. But it thrills me every year. Today took a picture of one blooming, with at least 5 blossoms at once (quite crowded, but beautiful).


On Jun 26, 2016, wakingdream from Allentown, PA wrote:

I received this plant in the mid 1990's at a garden club plant swap. It was ID'd as 'Double Irish' but later research yielded the 'Kwanso' label. My flowers are triples with the reddish accents. It is a fast spreader and can fill in an area quickly. It looks striking when paired with dark purple Larkspur. A local Daylily farm owner told me it is related to the ubiquitous Ditch Lily. Underground runners are meandering outside the Kwanso bed. Some are controlled by mowing. The comments below describing the dried foliage following bloom seems to be true for many other daylilies, not just Kwanso. I don't see that as a particular disadvantage for this cultivar. Kwanso blooms well for me and has also made a nice showing in large pots. I am giving it a neutral rating because I must watch i... read more


On Jun 19, 2016, coriaceous from ROSLINDALE, MA wrote:

This cultivar is widely naturalized in North America. Tough and vigorous, it can bloom in more shade than other daylilies, but like them it performs best in full sun. It blooms for 2-3 weeks, and its season is early, shortly after Stella blooms. It does not repeat. Scapes are generally 3-4' tall. It is hardy to Z3.

Like other daylilies, the foliage goes semi-dormant after flowering, with many dead leaves. If you run a lawnmower over it then, it will quickly send up fresh, more attractive new foliage.

It is a sterile triploid and does not set seed, but in the garden it spreads aggressively by long underground rhizomes (to 2'). It is not a good neighbor to other plants in a mixed border, and it is best planted in a bed by itself where its spread is confined by ... read more


On Jul 1, 2013, fuzzien2 from Fredericksburg, IN wrote:

The kwanso daylily can also be seen growing at Fredericksburg, Indiana in our back yard


On Sep 18, 2012, Italianstyle from Gorizia,
Italy (Zone 8a) wrote:

I live in the north of Italy (near Trieste) zone 8a,
I have had this plant in my garden for the last 4 years, I like it alot as it makes beautiful flowers and is very hardy. This year for the first time it has grown new plants from the flower stalks after the blooms died.


On Apr 12, 2010, Michael_Ronayne from Nutley, NJ (Zone 6b) wrote:

There is a great deal of confusion pertaining to the identification of Hemerocallis fulva 'Kwanso' and Hemerocallis fulva 'Flore Pleno'.

Basically H. fulva 'Kwanso' is a double with 12 petals and 'Flore Pleno' is a triple with 18 petals! The gardening term 'Flore Pleno' which is applied to many plants means a flower with extra petals.


On Jun 14, 2009, motherhen4 from Sweetwater, TN wrote:

Kwanso is a very hardy daylily. It can take over other daylilies though because it spreads rapidly.Sometimes the underground runners will pop up two or three feet away from the original plant.Great for ground cover or in ditches or even along side fences. There is another daylily that looks like this one, but isn't aggressive, I think it is shorter too. It was called Double Apricot Beauty, but I can't find any info on it.


On Jan 28, 2009, dragonfly62 from Nilwood, IL (Zone 5b) wrote:

I have had this plant for yrs and it even does well in the shade. My Kwanso is triple not double and I have seedlings that are triple and they are cantalope color light orange.


On Sep 7, 2008, John_PI from New Bern, NC wrote:

I have what I have been told is a Kwanso. The blooms last 4 to 5 days and it grows young plants after the blooms die from the flower stalk. Does this sound right.


On Jul 27, 2007, sandy4 from Reading, MA wrote:

I have had this plant growing in my garden for over three years now. I don't like it and I will tell you why. It does not produce uniform blossums. Often times the blooms are so twisted that they are almost painful to look at. Every now and then you may get the almost perfect blossum but having the plant take up precious space in my garden is not worth it to me. One positive thing I can say about it is it is a very robust grower. Too bad it falls short on every other aspect in my opinion.


On Jun 21, 2007, WUVIE from Hulbert, OK (Zone 7a) wrote:

This is indeed a unique looking daylily. A plant that has
'roots' which literally go back in time.

A true original cultivar that deserves the respect
it seldom receives. I have many growing at our home.


On Jun 13, 2007, radiatorfan from Metairie, LA wrote:

I was given this plant a few years ago and was told it was not a daylily. It survived flooding from Katrina and subsequent neglect for a year and multiplies like crazy. Had a little aphid problem this spring when new leaves emerged. Otherwise pest free.


On Jun 13, 2007, GeorgiaJo from Dallas, GA (Zone 7b) wrote:

We don't get much sun, so I planted these in large pots so I can move them around. Doing very well.


On Mar 22, 2007, escambiaguy from Atmore, AL (Zone 8b) wrote:

I have some that were started by my great grandparents 50 years ago and they are still growing strong. They do need dividing every other year, but otherwise are carefree.


On Jul 17, 2006, ignote from Boston, MA (Zone 6a) wrote:

I bought a house last fall, and this spring we started preparing a flower bed where the previous owner had placed a bunch of black plastic and landscaping rock. A few months later, we noticed a couple of fans growing. We left them in place to see what would surprise us, and this daylily bloomed. This must be the hardiest of the hardy!


On Jun 29, 2006, Turtle_35206 from Cordele, GA wrote:

I have found this plant to be a good bloomer and pest free. I have also found that with additional feeding and water this will rebloom in Georgia in zone 8.


On Aug 10, 2004, JeffWilkinson from Baltimore, MD wrote:

I have a bed of these lilies in my garden from my wife's grandparents. They also grow in other patches around our neighborhood. (Baltimore, Maryland, USA). They grow very well with little maintenance and modest light (tree-shaded yard so they get partial-day direct sunlight).

All I have to do is clean the dead leaves out in late fall or early spring, and to thin them out a bit. They reproduce quite well by themselves and will fill the bed too densely unless you move some bulbs elsewhere each year or two.

Beautiful, complex blossums. They don't last more than a few weeks for me, and don't last long when cut, but they are worth the wait. FWIW, I'm a very amateur gardener, and if I can grow these successfully, anyone can. ;-)


On Jul 18, 2004, lint from Effort, PA wrote:

This Kwanso type of hemerocallis is the original daylily plant. These came from Japan decades ago and are parent to the common roadside orange daylilies growing here in Pennsylvania. Mine has variegated leaves, i.e. striped with white. Semi-double orange flowers - apparently the degree of ruffling varies with the plant. This info came from our local daylily expert and hybridizer in Northeaster PA whose farm I visited yesterday. Very vigorous and all parts are edible. With daylilies, the more fragrant they are, the sweeter they taste - or so I've heard! ... Linda


On Oct 28, 2003, patq wrote:

I grow this in Belfast, Ireland and find it is a good, if slightly agressively spreading, plant with a nice soft orange colouring. Flowers are a little on the course side, but it is very reliable. Works well in massed planting.


On Aug 30, 2002, FL_Gator from Dunnellon, FL (Zone 8b) wrote:

I have grown KWANSO in two vastly different climates, Kentucky and Florida, and have found it to be a good plant in both. In some situations, the fact that it is an aggressive spreader could be a drawback, but its hardiness is great.