Stenocactus multicostatus

Tephrocactus geometricus is a highly sought-after cactus native to northwestern Argentina. Unlike Conophytum species from southern Africa, this plant belongs to the cactus family (Cactaceae) and is admired for its nearly spherical, blue-grey stem segments.

Characteristics:

• Forms individual round to slightly flattened segments that resemble smooth stone balls.
• Stem segments are blue-grey, grey-green, or lavender-grey, often covered with a waxy coating.
• Produces large, silky flowers that are usually white, pink, or pale magenta.
• Grows slowly and branches by producing new segments.
• Older specimens can form attractive clusters.

Cultivation:

• Summer-growing cactus.
• Requires a very well-drained, mineral-rich soil mix.
• Water moderately during active growth in spring and summer.
• Reduce watering significantly during winter.
• Prefers full sun to bright light.
• Sensitive to overwatering, especially in cool conditions.

Habitat:

• Native to dry, rocky regions of northwestern Argentina.
• Often grows in harsh environments with intense sunlight and limited rainfall.

Haworthia truncata is a distinctive, slow-growing succulent native to the Little Karoo region of South Africa. It is best known for its unusual “horse-tooth” leaf arrangement, where the leaf tips appear as flat, truncated windows sticking out of the soil.

Characteristics:

• Grows in small clusters of thick, rectangular leaves arranged in two opposite rows (distichous pattern).
• Leaf tips are flat and translucent, allowing light to enter the buried plant body.
• Usually grey-green to brown-green in colour, often blending with surrounding soil.
• Remains mostly underground in habitat, with only leaf tips exposed.
• Produces small white to pale pink flowers on slender stalks, usually in spring.

Cultivation:

• Winter-growing species (active in cooler months).
• Requires very well-drained, mineral-rich soil.
• Water sparingly during active growth; reduce watering in summer dormancy.
• Prefers bright light but can tolerate partial shade.
• Sensitive to overwatering, especially in cool conditions.

Habitat:

• Native to rocky, semi-desert areas of the Little Karoo, South Africa.
• Often grows partially buried among quartz or clay soils.

Mammillaria theresae is a miniature, rare cactus native to the mountainous regions of Durango, Mexico. It features soft, white spines and vibrant pink to magenta flowers that bloom in spring. This slow-growing species prefers bright light, well-draining soil, and minimal watering. A true gem for collectors!