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ARABIS alpina 'Snowdrop'

Image of Arabis alpina ssp. caucasica 'Snowdrop'

James H. Schutte

Family

Brassicaceae

Botanical Name

ARABIS alpina ssp. caucasica 'Snowdrop'

Plant Common Name

Alpine Rockcress

General Description

Pretty and early-flowering, mountain rockcress is a low-growing perennial that brightens up rock gardens and mixed borders. This mat-forming evergreen has soft, gray-green leaves. In spring it puts forth short, upright stems topped with fragrant, four-petaled white flowers.

Hailing from rocky, mountainous areas in Europe and the Mediterranean, mountain rockcress is drought tolerant but does not appreciate extreme heat or humidity. It grows best in full sun and average soil with good drainage. Cut it back after flowering to keep the foliage dense and to prevent the plant from becoming straggly in the summer heat. Its flowers attract bees and butterflies and look great in combination with pansies, short alliums, dwarf blue fescue, and spring flowering bulbs such as Narcissus. It works well on the border edge, in the rock garden, or cascading over a wall.

Characteristics

  • AHS Heat Zone

    8 - 1

  • USDA Hardiness Zone

    4 - 8

  • Sunset Zone

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

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun

  • Height

    6"-8" / 15.2cm - 20.3cm

  • Width

    12"-24" / 30.5cm - 61.0cm

  • Bloom Time

    Spring

  • Native To

    Europe

Growing Conditions

  • Soil pH

    Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Fast

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Mat-forming

  • Seasonal Interest

    Spring, Summer, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White

  • Foliage Color (Spring)

    Gray Green

  • Foliage Color (Summer)

    Gray Green

  • Foliage Color (Fall)

    Gray Green

  • Foliage Color (Winter)

    Gray 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

    Yes

  • Showy Bark

    No

Special Characteristics

  • Usage

    Alpine, Container, Edging, Foundation, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    Yes