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HAWORTHIA attenuata var. radula

Image of Haworthia attenuata var. radula

James H. Schutte

Family

Liliaceae

Botanical Name

HAWORTHIA attenuata var. radula

Plant Common Name

Haworthia, Silver Zebra Plant

Special Notice

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

General Description

The silver zebra plant produces numerous tiny white spots on its upright green leaves, making them look silvery green. It also resembles an ocean anemone or urchin found in a coral reef. This frost-tender, succulent perennial is native to a small area to the west of Port Elizabeth in southern South Africa. It develops into a clump containing numerous small rosettes with a fibrous root system.

The rigid, upright leaves are slightly longer and more slender than those of the standard zebra plant, Haworthia attenuata. Raised dots or bumps (tubercles) cover the leaves in profusion, masking much of the green leaf color. Anytime from late spring to fall, the largest, most mature plants in the clump produce a long, whip-like stem. Tiny greenish white flowers occur on the stems high above the foliage.

Grow the silver zebra plant in any sandy, fast-draining soil that is barely moist to dry. A non-acidic soil is ideal. Although tolerant of partial sun, excessive sun exposure causes leaves to blush reddish orange or leaves to scald and die. A partially shaded location is best, such as with brief morning sun followed by very bright, indirect light the rest of the day. Wet soil quickly leads to rot, especially during chilly winter months. Low ambient humidity is always needed. Outdoors where hardy, use zebra plants as a shady rock garden groundcover accent or in patio containers. A clump of zebra plants also grows easily and well as houseplants in bright, filtered light. Avoid over-watering the sandy potting soil when grown indoors, and keep the air moving freely among the leaves.

Characteristics

  • AHS Heat Zone

    12 - 1

  • USDA Hardiness Zone

    10 - 15

  • Sunset Zone

    15, 16, 17, 20, 21, 22, 23, 24

  • Plant Type

    Cactus or Succulent

  • Sun Exposure

    Partial Shade

  • Height

    5"-6" / 12.7cm - 15.2cm

  • Width

    5"-10" / 12.7cm - 25.4cm

  • Bloom Time

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

  • Native To

    Southern Africa, South Africa

Growing Conditions

  • Soil pH

    Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Sand

  • Tolerances

    Drought

  • Growth Rate

    Slow

  • Water Requirements

    Drought Tolerant

  • Habit

    Rosette/Stemless

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Insignificant

  • Flower Color

    White, Green

  • Foliage Color (Spring)

    White, Green

  • Foliage Color (Spring) Modifier

    Spotted/Mottled

  • Foliage Color (Summer)

    White, Green

  • Foliage Color (Summer) Modifier

    Spotted/Mottled

  • Foliage Color (Fall)

    White, Green

  • Foliage Color (Fall) Modifier

    Spotted/Mottled

  • Foliage Color (Winter)

    White, Green

  • Foliage Color (Winter) Modifier

    SpottedMottled

  • 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

    Coarse

  • Foliage Sheen

    Matte

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Houseplant, Rock Garden / Wall, Tropical

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Hummingbirds

  • Self-Sowing

    No