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Mammillaria zeilmanniana (Rose Pincushion Cactus)


Scientific Name

Mammillaria zeilmanniana Boed.

Common Names

Rose Pincushion Cactus


Mammillaria crinita subsp. zeilmanniana, Mammillaria crinita f. zeilmanniana, Chilita zeilmanniana, Ebnerella zeilmanniana, Neomammillaria zeilmanniana

Scientific Classification

Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Subtribe: Cactinae
Genus: Mammillaria


Mammillaria zeilmanniana is a small cactus with glossy green, globular to cylindrical stems that grow up to 5 inches (12.5 cm) tall and up to 3 inches (7.5 cm) in diameter. It has 4 (the upper three straight, the lowest hooked) reddish central spines and clusters of soft, hair-like, 15 to 18, white radial spines. Flowers are pale pinkish-violet or purple with yellowish stigmas. Rings of flowers are present most of the year.

Mammillaria zeilmanniana (Rose Pincushion Cactus)

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USDA hardiness zones 9a to 11b: from 20 °F (−6.7 °C) to 50 °F (+10 °C).

How to Grow and Care

To encourage better flowering, allow the plants to enjoy a cooling period in the winter and suspend watering. Unlike many other cacti, which use their ribs as storage devices, Mammillaria feature raised tubercles, from which spines emerge. When you water, the tubercles will expand to allow for increased water storage. The flowers appear from these tubercles' axils on the previous year's growth, which accounts for their interesting halo effect. The cactus mustn't be exposed to prolonged dampness and sitting water. Never let your cactus sit in a dish of water. Lastly, make sure to fertilize during the growing season for the best results.

Repot as needed, preferably during the warm season. To repot Mammillaria, make sure the soil is dry before repotting, then gently remove the pot. Knock away the old soil from the roots, making sure to remove any rotted or dead roots in the process. Treat any cuts with a fungicide. Place the plant in its new pot and backfill with potting soil, spreading the roots out as you repot. Leave the plant dry for a week or so, then begin to water lightly to reduce the risk of root rot. See more at How to Grow and Care for Mammillaria.


Mammillaria zeilmanniana is native to Mexico.



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