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HEMEROCALLIS 'Hesperus'

Image of Hemerocallis 'Hesperus'

Gerald L. Klingaman

Family

Liliaceae

Botanical Name

HEMEROCALLIS 'Hesperus'

Plant Common Name

Daylily, Hesperus Daylily

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

In Greek mythology, Hesperus was the son of Eos and personified as Venus, the "evening star." Beautiful in flower shape and form, the lemon-yellow-blooming Hesperus daylily is both fittingly named and one of the best selections from the mid-20th century. The daylily is a popular perennial revered for its reliability, ease of growth and floral beauty. The hybrid diploid ‘Hesperus’ produces flowers atop a tall stem - a scape - in early to midsummer. The six petal-like tepals reflex backward gracefully. These bright lemon-yellow flowers open during the day and rise from clumps of strappy green leaves that die back once fall frosts return. Each blossom in the bud cluster remains open for at least 16 hours, but no more than 24 hours before shriveling up.

'Hesperus' was bred by Carl Milliken and introduced in 1948. The American Hemerocallis Society gave this cultivar the prestigious Stout Silver Medal award in 1958.

Daylilies are clump-forming and spread slowly via rhizomes. The blooms are commonly held in branched clusters on long leafless stems that stand above the foliage. All daylilies are easy to grow if provided full to partial sun and average soil with good drainage. Deciduous daylilies are the hardiest and survive in the coldest reaches of their range; however they may struggle in areas with mild winters. Evergreen types grow well in all but the most tropical regions but require protection where winters are harsh and cold. Their clumps spread over time and may need to be divided every three to four years. After plants bloom, it is wise to shear back their foliage to allow for a fresh flush of growth.

Enjoy this tried-and-true herbaceous ornamental in mixed beds and borders, containers and large mass plantings.

Characteristics

  • AHS Heat Zone

    9 - 2

  • USDA Hardiness Zone

    3 - 8

  • Sunset Zone

    1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    18"-45" / 45.7cm - 114.3cm

  • Width

    18"-24" / 45.7cm - 61.0cm

  • Bloom Time

    Summer

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Average

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Pollution, Drought, Salt

  • Growth Rate

    Fast

  • Water Requirements

    Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Summer

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Yellow, Lemon Yellow

  • Fruit Color

    Green, Brown

  • Foliage Color (Spring)

    Green, Light Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Green

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Edging, Foundation, Mixed Border

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Hummingbirds

  • Self-Sowing

    No