Plants of the cactus genus Astrophytum are found in Northern and Central Mexico. Especially cultivars like Onzuka and Superkabuto are very popular.
Astrophytum cactus plants are rather easy to germinate from seeds. They are rather sensitive to cultivation mistakes. Give them a warm spot in your greenhouse and bright light. Astrophytum grows best in a mineral soil.
Also check our Astrophytum seeds section.