This globose pale green cactus is up to 100mm (4in) wide and covered in prominent 4-sided tubercles that are tipped in large grey-white spines. The funnel-shaped deep pink flowers appear during summer towards the top of the plant.

Hardiness zones 10 to 11 

Mammillaria magnimamma is naturally found in central Mexico growing in stony well drained, moderately fertile soils in an open sunny to partially shaded position and tolerates drought or high temperatures but is frost tender.

This cactus is grown for its rounded habit and its flowers. It is planted in rockeries, roof gardens and cactus and succulent gardens as a specimen or in group plantings. It is suitable for coastal or inland regions establishing from division in 2 to 4 years and may be used as a potted indoor plant. ID 2043

Note:
It is solitary when young and producing offsets as it matures. 

Mammillaria (măm-i-LAH-ree-a) magnimamma (mahg-ni-MAM-ah)

Cactaceae (kak-TAY-see-ee)