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DELOSPERMA herbeum

Image of Delosperma herbeum

Family

Aizoaceae

Botanical Name

DELOSPERMA herbeum

Plant Common Name

White Ice Plant

General Description

The cool, silvery, white iceplant is heat and drought tolerant and blooms over a long period throughout summer and fall. This succulent perennial forms spreading mounds of gray-green succulent leaves that are fleshy and three-sided. The silvery foliage compliments its glistening daisy-like flowers, which draw bees and butterflies. The flowers are followed by inconspicuous brown winged capsules filled with tan seeds.

This native of eastern South Africa naturally inhabits rocky screes on mountainsides where conditions are both cold and dry. So, sunny locations with average to poor, sharply drained soils are ideal. Allow plants to completely dry out between water applications, and limit water in the late fall to ensure roots are dry through the winter months. Cold wet conditions will cause root and stem rot. Delosperma herbeum is easily divided and can be propagated by seed or cuttings.

This is an excellent choice for modern gardeners looking for adaptable succulents with bright white flowers. Plant it in broad shallow containers, stone troughs, rock gardens or pebbly sunny border edges. It also thrives in crevices created in rock wall or stone walkways.

Characteristics

  • AHS Heat Zone

    9 - 6

  • USDA Hardiness Zone

    5 - 10

  • Sunset Zone

    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

    Cactus or Succulent

  • Sun Exposure

    Full Sun

  • Height

    4"-6" / 10.2cm - 15.2cm

  • Width

    6"-12" / 15.2cm - 30.5cm

  • Bloom Time

    Early Summer, Summer, Late Summer, Early Fall, Fall

  • Native To

    Southern Africa

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Growth Rate

    Medium

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Summer

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White

  • Fruit Color

    Brown

  • Foliage Color (Spring)

    Gray Green

  • Foliage Color (Summer)

    Gray Green

  • Foliage Color (Fall)

    Gray Green

  • Foliage Color (Winter)

    Gray Green

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    Yes

  • 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, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    Yes