Photo by Melody

PlantFiles: Daylily
Hemerocallis 'Calgary Stampede'

Family: Hemerocallidaceae (hem-er-oh-kal-id-AY-see-ee) (Info)
Genus: Hemerocallis (hem-er-oh-KAL-iss) (Info)
Cultivar: Calgary Stampede
Hybridized by Hansen; Year of Registration or Introduction: 1994

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9 members have or want this plant for trade.

18-24 in. (45-60 cm)

18-24 in. (45-60 cm)

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)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 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:
Nocturnal (noc.)
Extended (ext.)

Flower Type:

Bloom Color:

Color Patterns:

Flower Fragrance:
No fragrance

Foliage Habit:
Semi-evergreen (sev.)


Awards (if applicable):
Honorable Mention

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There are a total of 15 photos.
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2 positives
1 neutral
No negatives

Gardeners' Notes:

Positive daredevil On Oct 19, 2003, daredevil from Niagara Falls, NY (Zone 6a) wrote:

It's a slow opener here in zone 6 New York too, but it bloomed well the following spring after being received bare root in late August. For hybridizing purposes, it's style sticks out long before the bloom opens so can be easily pollinated, but it has to be pried open if you want to collect its pollen early.

Positive TerriFlorida On Oct 18, 2003, TerriFlorida from Plant City, FL wrote:

I have had my Calgary Stampede for three summers. It didn't bloom the first year, it did bloom the second but was unimpressive. I moved, and finally got it planted earlier this year. It bloomed beautifully for the first time, which told me two things. It wants good dirt, and it needs time to establish. It was well established in its pot when I planted it, and I was careful to not disturb the roots. Some daylilies thrive on being moved, some need time to settle in. I think CS is in the latter category. The last point you ought to know is that it is not open early in the morning. This can be a problem for hybridizers and people who want to walk their gardens before work. It sure is pretty when it is open!

Neutral mystic On Feb 16, 2003, mystic from Ewing, KY (Zone 6a) wrote:

5" blooms, 22" scape,Hansen 1994


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

Merced, California
Plant City, Florida
Hebron, Kentucky
Dearborn Heights, Michigan
Auburn, New Hampshire
Elizabeth City, North Carolina
Corning, Ohio
Friedensburg, Pennsylvania
Conroe, Texas
Houston, Texas (2 reports)

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