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Huernia zebrina subsp. insigniflora (Lifesaver Cactus)

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Scientific Name

Huernia zebrina subsp. insigniflora (C.A.Maass) Bruyns

Common Names

Lifesaver Cactus

Synonyms

Huernia confusa, Huernia insigniflora, Ceropegia zebrina subsp. insigniflora

Scientific Classification

Family: Apocynaceae
Subfamily: Asclepiadoideae
Tribe: Stapeliae
Genus: Huernia

Description

Huernia zebrina subsp. insigniflora is a dwarf succulent that forms a clump of erect stems, up to 4 inches (10 cm) tall and up to 0.8 inches (2 cm) wide, with protruding teeth. The stems are 4-angled and dull grey-green. Flowers grow solitary from the base of young stems on pedicels up to 0.5 inches (1.3 cm) long. Pale rose or ivory, 5-pointed corolla lobes are triangular with long, narrow, attenuating tips. They spread star-like around the shiny, bright red, deep purple, or liver-colored annulus around the flower tube.

Huernia zebrina subsp. insigniflora (Lifesaver Cactus)

Hardiness

USDA hardiness zones 10b to 11b: from 35 °F (+1.7 °C) to 50 °F (+10 °C).

How to Grow and Care

Huernias require a potting mix with excellent drainage. A succulent plant mix of 50 percent pumice or perlite, 25 percent peat or organic mulch, and 25 percent sand helps prevent rotting and overwatering. Roots experience dieback in cool-season dormancy, so plants grow best in shallow containers that allow the soil to dry out quickly. Using clay pots further helps the soil from staying too wet. An underlayment of coarse gravel below the soil mix also improves drainage. In climates with damp, cool summers, a layer of gravel between the plant and the soil mix also helps prevent the stems from staying too moist.

Outdoor plantings do well in raised beds. Huernias prefer bright light or partial shade. In nature, they grow underneath shrubs or other plants. Too much sun causes stems to develop protective reddish or purple pigmentation and can scald the stems. Too little light leads to weak, thin growth with decreased flower production. These plants grow best between 50 and 80 °F (10 and 27 °C). Protect them from freezing weather. See more at How to Grow and Care for Huernia.

Origin

Huernia zebrina subsp. insigniflora is native to South Africa (Limpopo, Mpumalanga and Wolkberg).

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