Mammillaria plumosa is a clustering cactus that forms a mound of globose stems covered in soft white spines. It grows up to 5 inches (12.5 cm) tall and up to 16 inches (40 cm) in diameter. The individual stems are up to 2.8 inches (7 cm) in diameter. Flowers are creamy-white, greenish-yellow, or dull pink and appear in late summer.
 
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 emerge from the axils of these tubercles 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.
 
 
* Picture and information intended only as a guide.  Size and colours of plants will vary, not any 1 plant is exactly the same and minor variations will occur.
 
** All plants will be posted bare rooted.
 
*** Due to this species being grown from seed specific varieties cannot be accurately identified and named. An assortment of varieties are available and will be sent at random. If you are after a specfic variety which is pictured, please contact us with the image and we will do our best to obtain that variety for you, however we cannot guarantee as we go by what is available at the time :)