Species Daylily, Citron Daylily

Hemerocallis citrina

Family: Hemerocallidaceae (hem-er-oh-kal-id-AY-see-ee) (Info)
Genus: Hemerocallis (hem-er-oh-KAL-iss) (Info)
Species: citrina (sit-REE-nuh) (Info)
Hybridized by Baroni
Registered or introduced: 1897
Synonym:Hemerocallis altissima
Synonym:Hemerocallis coreana
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36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)


18-24 in. (45-60 cm)

24-36 in. (60-90 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:

Nocturnal (noc.)

Flower Type:


Bloom Color:

Bright Yellow

Color Patterns:


Flower Fragrance:

Very Fragrant

Foliage Habit:

Dormant (dor.)



Awards (if applicable):

Unknown - Tell us

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


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

Miccosukee Cpo, Florida

Brownstown, Indiana

Barbourville, Kentucky

Medway, Massachusetts

Dearborn Heights, Michigan

Fulton, Missouri

Polson, Montana

Durham, North Carolina

Tulsa, Oklahoma

Christiana, Tennessee

Austin, Texas

Olympia, Washington

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Gardeners' Notes:


On Feb 18, 2010, mlaihome from Saratoga, CA wrote:

H Citrina: I am told this has been used as one of the food stables in China and has medicinal use as well. Long re-blooming plant, hardy. Slighly fragant, don't need much water and still can survive, can grow on slope and good for xeriscape. Propagation by division of roots. Shrubs 24-30 inches tall.
The Chinese gathers the flower buds (about 6 to 7 inches long, pale greenish yellow), and use for cooking in fresh form, or dry (dehydration) for soup and steam with or stir-fly with pork/chicken/fish etc.


On Aug 6, 2008, PrimroseSue from Medway, MA (Zone 5b) wrote:

This is a wonderful Hem. that I planted beside my steps going up to my garden shed - so I can smell its wonderful fragrance when I pass by it! Mine doesn't stay in bloom as long as I'd like, but it's a keeper!


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

This species has done very well for me in Zone 8b Florida. It is a hard Dormant, and is late to break dormancy, but then grows fast and blooms heavily. The foliage has a blue tint to it, which is an another plus.
The flowers open in the evening, and close the middle of the next morning. They are extremely fragrant. I have seen Hummingbirds visit the blooms.