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Mammillaria pringlei forma cristata

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Mammillaria pringlei froma cristata
 

Description: The typical Mammillaria pringlei is generally a solitary  ball cactus with a ovoid or  globular shaped green stem covered by yellow or amber spines.
Stems: Approx 20 cm tall and 8-15 wide that eventually branches out by splitting each head.
Spines: It is one of the few Mammillaria that is completely covered with yellow spines.The spines on this species seem to radiate light, almost making it appear to glow.
Radial spines: White and spreading.
Central spines: Recurved (curved backward), deep yellow to golden in color.
Flowers: The small red flowers are 3/8 inches long.
Blooming season: Flowers can appear anytime of the year:
 

Cultivation:   It is a relatively easy plant to grow, both grafted or on its own roots. During the summer it is best to keep the plants outside, where the temperature can rise to over 30 C with no harm to the plant.  Furnish good drainage and use a an open and free draining mineral compost that allows therefore roots to breath. They should be kept almost completely dry during the winter months. From March onwards the plant will begin to grow, and watering should be increased gradually until late May, when the plant should be in full growth.
Water regularly during the summer, so long as the plant pot is allowed to drain and not sit in a tray of water.  During hot weather you may need to water the plants more frequently, as long as the plant is actively growing.  From late September watering should be reduced, to force the plant to go into a state of semi-dormancy By October you should be back in to the winter watering regime.
It needs full sun, avoiding only the harshest summer sun If kept too dark, plants may become overly lush and greener, and could be prone to rot, due to over-watering.
Feeding may not be necessary at all if the compost is fresh Then feed in summer only if the plant hasn't been repotted recently.  Do not feed the plants from September onwards, as this can cause lush growth, which can be fatal during the darker cold months.  Grown specimens resist to -4C for a short time.
Propagation:
By vegetative propagation grafting or stem cuttings from adult plants.


Photo of conspecific taxa, varieties, forms and cultivars of plants belonging to the Mammillaria rhodantha complex (This Taxon has several of synonyms ( like many other cacti) whit controversial varieties and subspecies and comprises different forms, but where each form is linked to others by populations of plants with intermediate characteristics):

Family: Cactaceae (Cactus Family)

Scientific name:  Mammillaria pringlei  (J. M. Coult.) K. Brandegee
Place of publication: Zo 5:7. 1900
forma cristata

Origin Garden origin (Nursery produced cultivar)

Conservation status: Listed in CITES appendix 1.

Synonyms:

  • Cactus pringlei J. M. Coult.
    Contr. U.S. Natl. Herb. 3:109. 1894
  • Mammillaria rhodantha subsp. pringlei (J. M. Coult.) D. R. Hunt
    Place of publication: Mammillaria Postscripts 6:8. 1997


The crested form is a golden-yellow spined treasure that forms superb brain-shaped mounds up to 50 cm wide. And one of the showiest crested cacti. A real traffic stopper!
 

 





 

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This old page has been moved! Click the link next on the right to enter the new Enciclopedia of Cacti. We hope you find this new site informative and useful.

The Encyclopedia of Cacti