Latin Name: Mammillaria Hahniana.

Common Name: Old Lady Cactus, Old Lady of Mexico, Old Lady Pincushion, Birthday Cake Cactus.

Origin: Guanajuato, San Louis Potosi, Mexico.

Hardiness: -5 if dry but best keep above freezing to avoid blemishes.

Growth Characteristics: Very showy clump forming Cactus. Dense white bristles and fine spines. Grows up to 20cm in height. Violet-red to pink coloured flowers up to 1cm in length. Edible fruit.

Sun: Full sun.

Exposure: Sheltered.

Soil: Fast draining soil. Gritty.

Moisture: Water regularly in summer. Dry in winter.