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Sempervivum 'Twilight Blues'

Image of Sempervivum 'Twilight Blues'

Family

Crassulaceae

Botanical Name

Sempervivum 'Twilight Blues'

Plant Common Name

Hens and Chicks, Twilight Blues Hens and Chicks

General Description

The fleshy, blue-green leaves of 'Twilight Blues' have rose tinting that deepens to purple in summer. This cultivar is one of many outstanding hybrid sempervivums deriving from alpine species native to the mountains of southern Europe and western Asia.

The evergreen rosettes develop by short-stalked offsets into crowded, colorful, richly textured mats. The multi-hued foliage contrasts beautifully with frost and snow. In summer, some older rosettes send out thick erect stems bristling with scaly leaves and topped with clusters of small pink blooms. These rosettes subsequently die.

Like other succulents, sempervivums don’t ask for deep soils but prefer an infertile sharply drained growing medium. Winter dampness is death to them. Europeans have long grown them on tile roofs, whence the common name "houseleeks." Plant them in sandy gravelly infertile soil in sunny rock gardens, stone troughs, or crevices. Offsets may be severed and rooted in sand to create a whole new plant. Severed offsets are also useful for filling the gaps left by dead rosettes.

Characteristics

  • AHS Heat Zone

    8 - 1

  • USDA Hardiness Zone

    4 - 8

  • Sunset Zone

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

  • Plant Type

    Cactus or Succulent

  • Sun Exposure

    Full Sun, Partial Sun

  • Bloom Time

    Summer

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Rosette/Stemless

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Pink

  • Foliage Color (Spring)

    Blue Green, Rose

  • Foliage Color (Summer)

    Purple, Blue Green, Rose

  • Foliage Color (Fall)

    Purple, Blue Green, Rose

  • Foliage Color (Winter)

    Blue Green, Rose

  • Fragrant Flowers

    No

  • 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

    Yes

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Usage

    Alpine, Container, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No