Photo by Melody

PlantFiles: Daylily
Hemerocallis 'Yellow Explosion'

Family: Hemerocallidaceae (hem-er-oh-kal-id-AY-see-ee) (Info)
Genus: Hemerocallis (hem-er-oh-KAL-iss) (Info)
Cultivar: Yellow Explosion
Hybridized by Oakes; Year of Registration or Introduction: 1989

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24-36 in. (60-90 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:
Late Midseason (MLa)

Flower Size:
Large (more than 4.5" diameter)

Blooming Habit:
Diurnal (diu.)

Flower Type:

Bloom Color:
Bright Yellow

Color Patterns:

Flower Fragrance:
No fragrance

Foliage Habit:
Dormant (dor.)


Awards (if applicable):
Unknown - Tell us

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By fearneyhough
Thumbnail #1 of Hemerocallis  by fearneyhough

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There are a total of 9 photos.
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2 positives
1 neutral
No negatives

Gardeners' Notes:

Positive JonthanJ On Jan 6, 2010, JonthanJ from Logansport, IN wrote:

On ten years' experience, I would say that it blooms prodigiously over a long season and multiplies well. In full sun, the big flowers are right above the foliage at 24"

Neutral mystic On Feb 1, 2003, mystic from Ewing, KY (Zone 6a) wrote:

5.5" yellow blooms,27" scapes,Oakes (1989)

Positive nursechris On Oct 2, 2002, nursechris from East Greenbush, NY wrote:

I recieved this plant as a bonus with an order with Oakes Daylilies. I split it 3 ways , never expected to get a bloom this first year. Much to my delight it bloomed with a very large and very yellow flower that really stood out in my garden.I look forward to its display next year.


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

Logansport, Indiana
Monroe City, Missouri

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