Home / Guides / Plant Files / Hemerocallidaceae

Daylily 'String Theory'

Hemerocallis

Upload Image Print Article

View Gallery 1 photo

Upload Image Print Article

Family

Hemerocallidaceae (hem-er-oh-kal-id-AY-see-ee)

Info

Genus

Hemerocallis (hem-er-oh-KAL-iss)

Info

Synonym

Height

Unknown - Tell us

Spacing

36-48 in. (90-120 cm)

Hardiness

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

Sun Exposure

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)

Bloom Color

Full Sun

Sun to Partial Shade

Bloom Time

Unknown - Tell us

Other Details

Propagation Methods

Unknown - Tell us

Soil pH requirements

Lavender

Dark Purple/Black

Flower Fragrance

Unknown - Tell us

Flower Size

Unknown - Tell us

Flower Type

By dividing the rootball

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

Blooming Habit

Foliage Habit

Ploidy

Color Patterns

Awards (if applicable)

Unknown - Tell us

Patent Information

Unknown - Tell us

Foliage Color

Unknown - Tell us

Bloom Characteristics

Unknown - Tell us

Water Requirements

Unknown - Tell us

Where to Grow

Unknown - Tell us

Regional

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

Stanford, California

Elizabeth City, North Carolina(2 reports)

Fremont, Ohio

Tomah, Wisconsin

View all varieties of Daylilies

View this plant in a garden

5 members have or want this plant for trade

Gardener's Notes:

Post Comment

positive

neutral

negative

Sort By:

Post Comment

Sort By:

DaylilySLP

Dearborn Heights, MI (Zone 6a) | November 2014 | neutral

Lavender with dark purple eye above green throat.
(sdlg × Speedo)

doss

Stanford, CA (Zone 9b) | June 2006 | positive

String Theory (SpeedoXseedling) is 38" tall and has a 9" flower. Scapes are strong and because String Theory is hard to photograph, the ...Read More

Popular Plants

SEE ALL

Featured

BUG FILES

Small Mottled Willow Moth

(Spodoptera exigua)

BIRD FILES

Gabar Goshawk

(Micronisus gabar)

Featured

BUG FILES

Small Mottled Willow Moth

(Spodoptera exigua)

BIRD FILES

Gabar Goshawk

(Micronisus gabar)

Daylily 'String Theory'

Hemerocallis

Featured Videos

Gardener's Notes:

Get to Know Dave's Garden

Follow Dave's Garden