Species Daylily, Dumortier's Daylily

Hemerocallisdumortieri

Family
Hemerocallidaceae (hem-er-oh-kal-id-AY-see-ee)
Genus
Hemerocallis (hem-er-oh-KAL-iss)
Species
dumortieri (du-mor-tee-AIR-ee)
Synonym
Hemerocallis rutilans
Spacing
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Hardiness
6-9 in. (15-22 cm)
Sun Exposure
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)
Bloom Color
Full Sun
Sun to Partial Shade
Bloom Time
Other Details
Propagation Methods
Soil pH requirements
Gold (yellow-orange)
Flower Fragrance
Flower Size
Flower Type
By dividing the rootball
Blooming Habit
Foliage Habit
Color Patterns
Awards (if applicable)
Patent Information
Foliage Color
Bloom Characteristics
Water Requirements
Where to Grow
Regional

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

Minneapolis, Minnesota

Kalama, Washington

Milwaukee, Wisconsin

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Gardener's Notes:

2
positives
0
neutral
1
negative
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R
Cut Bank, MT (Zone 3a) | May 2010 | negative

ASPCA advises it is very Toxic to Cats. Does not appear to be so with dogs-horses.

N
Warrenville, IL | December 2007 | positive

Planted this plant 17 years ago between 2 Colorado Blue spuce. Trees engulfed it completely thought it was gone, then saw a little bit o...Read More

S
S
(Zone 8b) | May 2005 | positive

I 've saved this daylilly from refuse dump...someone had just thrown her away.. she looked really bad and I could hardly recognize her as...Read More

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