Albuca spiralis, commonly known as Corkscrew Albuca, is a striking bulbous plant native to South Africa. It is known for its distinctive, tightly coiled green leaves that resemble springy ringlets and its sweetly scented, vanilla-fragrant, yellow and green nodding flowers.
Taxonomy of Albuca spiralis
Scientific Name
Albuca spiralis L.f.
Synonym(s)
Falconera spiralis, Ornithogalum circinatum, Ornithogalum volutare
Common Name(s)
Corkscrew Albuca, Spiral-leaved Albuca, Spiral Albuca, Slime Lily, Helicopter Plant, Curly Albuca, Sticky Corkscrew Lily
Scientific Classification
Family: Asparagaceae
Subfamily: Scilloideae
Genus: Albuca
Etymology
The generic name "Albuca" (pronounced "AL-buh-kuh") means "asphodel," an allusion to the resemblance between plants of the genus Albuca and asphodels.
The specific epithet "spiralis" (pronounced "spir-AH-liss") means "spiraling" and refers to the narrow leaves of this species, which curve to form a spiral.
Description
Albuca spiralis is a small geophyte with distinctive green, narrow, spiral-tipped leaves covered with glandular hairs. The leaves grow from a bulbous base and can reach up to 8 inches (20 cm) in length. The bulb can grow up to 2 inches (5 cm) tall and 2 inches (5 cm) in diameter.
One central flower spike appears in late winter to early spring, bearing green flowers with pale yellow margins.
Origin
Albuca spiralis is native to the Western and Northern Cape provinces of South Africa. It occurs from Namaqualand to the Cape Peninsula and to the eastern Little Karoo, growing in sandy and loamy soils.
Cultivars of Albuca spiralis
How to Grow and Care for Albuca spiralis
Light: Albuca spiralis thrives in bright light and benefits from several hours of direct sunlight during its active growing season. Adequate sunlight is essential for developing its characteristic curly leaves. However, protect the plant from intense midday sun in extremely hot climates to prevent leaf scorching. When grown indoors, place it near a bright, sunny window and rotate the pot occasionally to encourage even growth.
Soil: This plant requires a well-draining soil mix to prevent bulb rot. A commercial cactus and succulent potting mix amended with pumice, perlite, or coarse sand is suitable. Avoid heavy soils that retain excessive moisture.
Temperature: Albuca spiralis prefers cool to mild temperatures during its active growing season, and warmer, dry conditions during summer dormancy. Established plants can tolerate brief periods of frost. It is generally considered suitable for USDA hardiness zones 9b–11b, which have average annual extreme minimum temperatures ranging from 25°F to 50°F (-3.9°C to 10°C).
Watering: Water moderately from fall through spring while the plant is actively growing, allowing the upper portion of the soil to dry between waterings. Reduce watering as the leaves begin to yellow and die back in late spring or early summer. During summer dormancy, keep the bulb almost completely dry to prevent rotting. Gradually resume watering when new growth appears in the fall.
Fertilizing: During the active growing season, apply a balanced, water-soluble fertilizer diluted to half strength approximately once a month. A fertilizer formulated for bulbs or flowering plants is suitable. Avoid excessive fertilization, and stop feeding when the leaves begin to die back as the plant enters dormancy.
Repotting: Repot Albuca spiralis every two to three years, or when the bulbs become overcrowded, or the potting mix deteriorates. The best time to repot is early fall, just before or at the start of the active growing season. Use a container with drainage holes. Avoid burying the bulb too deeply, and don't water excessively right after repotting.
Propagation: You can propagate Albuca spiralis from seeds or by separating basal offsets from mature bulbs. Seed propagation is reliable, but plants grown from seeds may take several years to reach flowering size. The easiest way to propagate established plants is by carefully separating the offsets, preferably in late summer or early fall, just before the growing season begins. Allow any damaged surfaces to dry before planting the offsets in a well-draining soil mix.
Learn more at How to Grow and Care for Albuca.
Toxicity of Albuca spiralis
Albuca spiralis is considered potentially toxic to humans, cats, and dogs if ingested. Eating parts of the plant may cause gastrointestinal irritation, including nausea and vomiting. Its sap may also irritate skin. Keep the plant out of reach of children and pets, and wear gloves when handling it.
Photo Gallery
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Internal Links
- Explore all plants within the genus Albuca.
- Explore all plants within the family Asparagaceae.