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Daylily
Hemerocallis 'Chicago Knockout'

Family: Hemerocallidaceae (hem-er-oh-kal-id-AY-see-ee) (Info)
Genus: Hemerocallis (hem-er-oh-KAL-iss) (Info)
Cultivar: Chicago Knockout
Hybridized by Marsh
Registered or introduced: 1980
» View all varieties of Daylilies

Height:

24-36 in. (60-90 cm)

Spacing:

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

Hardiness:

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:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

By dividing rhizomes, tubers, corms or bulbs (including offsets)

Bloom Time:

Midseason (M)

Flower Size:

Large (more than 4.5" diameter)

Blooming Habit:

Diurnal (diu.)

Flower Type:

Single

Bloom Color:

Purple

Color Patterns:

Blend

Flower Fragrance:

No fragrance

Foliage Habit:

Dormant (dor.)

Ploidy:

Tetraploid

Awards (if applicable):

Unknown - Tell us

Regional

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

Michigan City, Indiana

Durham, Maine

Pekin, North Dakota

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Jan 21, 2009, Mainer from Durham, ME (Zone 3a) wrote:

Plum red blend and quite vigorous. The blooms seem to need a really hot day before they darken up to purple black tones.