Acanthocalycium glaucum
Acanthocalycium glaucum, known as Spiny Star Cactus, is a perennial ornamental cactus belonging to the Cactaceae family. It thrives in full sun and requires low water, making it ideal for arid gardens. This evergreen cactus typically grows to 0.1–0.2 meters in height and produces pink, red, and white flowers from May to September. It prefers sandy or loamy soils and is hardy in USDA zones 9–11. It attracts pollinators and is non-toxic, but not fragrant.
Light
Full sun
Watering
Low water
Soil
Sandy, Loamy
Height
0.1–0.2 m
Spread
0.1–0.2 m
Zones
9–11
Flower colors
Plant in a well-draining cactus mix in a pot or directly in the ground in suitable climates. Water thoroughly when the soil is dry, and allow it to dry out completely between waterings. Protect from frost in colder zones.
Distinctive for its ribbed stem and prominent spines, this cactus adds a unique architectural element to any succulent collection.

White-flowered Acanthocalycium
Acanthocalycium leucanthum
Acanthocalycium
Acanthocalycium rhodotrichum
Acanthocalycium
Acanthocalycium spiniflorum
Acanthocalycium
Acanthocalycium thionanthum
Cactus
Acanthocereus canoensis
Acanthocereus castellae
Acanthocereus
Acanthocereus chiapensis
Acanthocereus
Acanthocereus cuixmalensis