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CERASTIUM tomentosum

Image of Cerastium tomentosum

TL

Family

Caryophyllaceae

Botanical Name

CERASTIUM tomentosum

Plant Common Name

Snow-in-Summer

General Description

Snow-in-Summer is an easy-care, mat-forming perennial that flowers so profusely in sproing that it resembles a drift of snow. This is a rampantly-spreading plant with small, wooly silver leaves that can persist through a mild winter. In spring, a carpet of clear white, star-shaped flowers with button centers rise above the leave on short stems and cover the plant into summer.

Grow Snow-in-Summer in full sun and average well-drained soil, A native of Italy and Sicily, it tolerates hot, dry conditions. Use it as a groundcover in a sunny bed or border, or in a mixed bed for contrasts of color and texture.

There are several selections of Snow in Summer such as ‘Columnae’ and ‘Silver Carpet,’ both with white flowers and taller flower stems than their parent.

Characteristics

  • AHS Heat Zone

    7 - 1

  • USDA Hardiness Zone

    3 - 7

  • Sunset Zone

    A1, A2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    4"-8" / 10.2cm - 20.3cm

  • Width

    3'-5' / 0.9m - 1.5m

  • Bloom Time

    Late Spring, Early Summer, Summer

  • Native To

    Europe, Mediterranean

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Drought, Salt

  • Growth Rate

    Fast

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Mat-forming

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White

  • Fruit Color

    Sandy Brown

  • Foliage Color (Spring)

    Silver, Gray

  • Foliage Color (Summer)

    Silver, Gray

  • Foliage Color (Fall)

    Silver, Gray

  • Foliage Color (Winter)

    Silver, Gray

  • 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

    Fine

  • Foliage Sheen

    Matte

  • Evergreen

    Semi-Evergreen

  • Showy Bark

    No

Special Characteristics

  • Usage

    Alpine, Edging, Groundcover, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    Sometimes

  • Attracts

    Butterflies

  • Self-Sowing

    Yes