Daylily 'Royal Celebration'

Hemerocallis

Family
Hemerocallidaceae (hem-er-oh-kal-id-AY-see-ee)
Genus
Hemerocallis (hem-er-oh-KAL-iss)
Synonym
Height
36-48 in. (90-120 cm)
Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Hardiness
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
Bloom Color
Medium Purple
Bloom Time
Early midseason (EM)
Reblooming (Re)
Other Details
Propagation Methods
By dividing the rootball
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Flower Fragrance
No fragrance
Flower Size
Large (more than 4.5" diameter)
Flower Type
Spider Variant (petal length to width is 4.0:1 to 5.0:1)
Blooming Habit
Diurnal (diu.)
Foliage Habit
Evergreen (ev.)
Ploidy
Tetraploid
Color Patterns
Self
Awards (if applicable)
Honorable Mention
Patent Information
Foliage Color
Bloom Characteristics
Water Requirements
Where to Grow
Regional

This plant is said to grow outdoors in the following regions:

San Jose, California

Tampa, Florida

Lynnville, Indiana

Brown City, Michigan

Coshocton, Ohio

Fremont, Ohio

Kalama, Washington

show all

Featured Videos

Gardener's Notes:

0
positive
2
neutrals
1
negative
Sort By:
Sort By:
D
Dearborn Heights, MI (Zone 6a) | November 2014 | neutral

Spider Ratio 4.29:1, Grape purple self above green throat.
(Cameroon Night × Long Tall Sally)

P
Baltimore, OH (Zone 6a) | July 2011 | negative

I have had a lot of bud distortion and bud drop. Any ideas on why?

T
Nashville, MI (Zone 6a) | January 2011 | neutral

I've had this plant a few years. Huge flowers, but they don't always open good. Low bud count. Last year I only had a few open, most of t...Read More

Featured
Chionanthus Species
(Chionanthus retusus)
Rabid Wolf Spider
(Rabidosa rabida)
Eastern Osprey
(Pandion cristatus)
Featured
Chionanthus Species
(Chionanthus retusus)
Rabid Wolf Spider
(Rabidosa rabida)
Eastern Osprey
(Pandion cristatus)