Astrophytum ornatum is native to the Hidalgo and Queretaro districts of Mexico. This cactus is globular when young becoming columnar with age. Astrophytum ornatum becomes larger then the other members of the genus, reaching a height of 35 cm or more.
Cultivation is not difficult. Good drainage of the soil is essential. Adult plants grow outside in the rockery at Leopoort and can easily withstand temperatures of -2 deg Celsius in winter. Young plants need to be protected from frost. Water sparingly during the winter months.
The yellow blooms appear during the warmer months.
Astrophytum ornatum, a large old plant in cultivation at Leopoort.
Astrophytum ornatum flower.