Synonyms:
Echinocactus grusonii var. curvispinus, Echinocactus intermedius

Origin of Name:
The genus name "Echinocactus" derives from the Greek words "echinos," meaning "hedgehog," and "cactus," referring to the plant's spiny surface. The species name "grusonii" honors the German horticulturist Hermann Gruson, known for his contributions to the cultivation of cacti. The variety name "curvispinus" refers to the distinctive curved spines, which set it apart from other varieties. "Intermedius" suggests this variant is intermediate in characteristics between others within the species.

Origin of Plant:
Echinocactus grusonii is native to the arid regions of central Mexico, particularly found in states like Durango and Zacatecas. It is adapted to thrive in rocky, well-draining soils that experience significant temperature variations, while all cultivars are nursery produced plants by selective breeding.

Short Description:
Echinocactus grusonii v. curvispinus (Intermedius) is a globular cactus distinguished by its pronounced ribs and the striking curvature of its spines. This variety can reach considerable diameters, displaying a vibrant green color. The spines are curved but reduced adding to its ornamental value. In spring and summer, it produces vibrant yellow flowers that bloom at the apex, attracting pollinators and adding visual interest.

Conservation Status:
While Echinocactus grusonii is currently not listed as endangered, habitat loss and poaching can threaten natural populations. Our plants are cultivated in nurseries to promote sustainable gardening practices that do not disturb their wild counterparts.

Care Instructions:
Echinocactus grusonii v. curvispinus thrives in a well-draining soil mixture, preferably formulated for cacti. It requires full sun to grow optimally. Water moderately, allowing the soil to dry out completely between waterings to prevent root rot. During the winter dormancy period, taper off watering significantly. Fertilize with a balanced, low-nitrogen fertilizer during the active growing season for best growth. Handle the cactus with caution due to its sharp spines, and ensure it is planted in a pot with adequate drainage to maintain health.