This small, rather inconspicuous cactus is characterized by elongated tubercles that point upwards and have between 2 and 8 differently-angled central spines, brown in color, surrounded by 9 to 15 shorter, white, radial spines, but the green stems are still clearly visible. closing. Stems are small, not exceeding 6 inches in height, are solitary for several years then start to cluster.
Purple flowers bloom in late summer, followed by green fruits.
Coryphantha macromeris prefers shady positions, beneath larger plants or partly covered by grass. It grows out in the open or under bushes. It also grows in pure gypsum and in gravelly soils.
It grows nearly in all substrates including nearly pure gypsum, gravelly soils, usually sandy alluvium or clay, especially in dry river lagoon areas, rarely crevices or steep slopes.
This is a beautiful specimen cactus for a large cactus or succulent garden. It can make an interesting plant for a large container and is a nice centerpiece for a warm, sunny courtyard. The plant does have a few spines so care should be taken in its location.
For watering cacti, the golden rule is to make sure the soil is completely dry before watering! This will stop the roots from rotting. It is advised to always use a pot with a drainage hole so that excess water can get drained out. If kept in a sunny area, you will need to water it once every week. If it is in a semi shaded or filtered light area, you might need to water it once in 2 weeks.
Cacti like soil that is well aerated and fast draining. You can fertilise the cactus in the summer months when it is in its growing season. During the winters it is best to cut back on any fertiliser and let the plant rest.