Haworthia cuspidata Haw.
Accepted Scientific Name
Haworthia cymbiformis (Haw.) Duval
Star Window Plant
Catevala cuspidata, Haworthia x cuspidata, Haworthia cymbiformis x retusa
The authenticity and origin of this succulent are debated by botanists. Lately is synonymized with Haworthia cymbiformis var. cymbiformis, but some botanists argue that it is an old hybrid between Haworthia cymbiformis and Haworthia retusa.
Haworthia cuspidata, also known as Haworthia x cuspidata, is a small succulent that forms rosettes of bright green leaves marked with darker green translucent areas near the apex. The individual rosettes grow up to 4 inches (10 cm) in diameter and offset freely to form a dense clump. Leaves are fleshy, thick, and pointed at the tips. They are shorter and thicker than those of Haworthia cymbiformis. Flowers are white with brownish-green veins and appear in summer on a slender, up to 8 inches (20 cm) tall inflorescence.
The specific epithet "cuspidata" derives from Latin "cuspidatus," meaning "pointed" and refers to the pointed leaf apex.
How to Grow and Care
Light: Although some species can grow in full, bright sun, most Haworthias live in more sheltered spots, and they are adapted to thrive in partial shade. Place the potted plants in a bright area with some protection from the hottest rays of the day.
Soil: All Haworthia species do not like their roots to remain wet for prolonged periods, so their potting soil should be well-drained. Use a commercial succulent soil or make your own well-draining potting mix.
Hardiness: Haworthia cuspidata can tolerate temperatures as low as 30 to 50 °F (-1.1 to 10 °C), USDA hardiness zones 10a to 11b.
Watering: These succulents are very tolerant of underwatering, but overwatering can quickly lead to rotting. From spring to fall, water thoroughly, then wait until the top of the soil dries out before watering again. During the winter rest period, water just enough to keep leaves from shriveling.
Fertilizing: Haworthias do not require much fertilizer. For optimum growth, fertilization is a good idea. Feed only with a dilute fertilizer and only during the active growing season.
Repotting: These succulents are generally slow-growing and can stay in the same pot for years. For best health, Haworthias should be repotted into fresh soil every two to three years.
Propagation: Vegetative propagation, especially by offsets, is the quickest and most common method of propagating Haworthias. They can also be propagated by leaves and seeds.
Toxicity: Haworthia species are generally non-toxic to humans and animals.
Learn more at How to Grow and Care for Haworthia.
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