Rainbow Pincushion

(Mammillaria rhodantha)

Rainbow Pincushion (Mammillaria rhodantha)

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Estimated Native Range
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Summary

Mammillaria rhodantha, commonly known as Rainbow Pincushion, is an evergreen succulent native to the arid highlands of central Mexico. It is a small, globular cactus typically ranging from 6 to 12 inches (15–30 cm) in height. The plant may grow in small clumps or as a solitary individual. Its spines are arranged in a distinctive pattern, with the lower half bearing white or gray spines that give the appearance of aging, while the upper part of the plant body is adorned with white woolly hairs. Rainbow Pincushion is renowned for its vibrant deep-pink to purple flowers that bloom profusely from spring to autumn, producing an orange-brown seed. The long flowering period and the colorful spines contribute to its ornamental value.

This species is favored for its low maintenance requirements and prolonged blooming season, making it an ideal houseplant. It is commonly grown in small pots due to its compact size. Rainbow Pincushion thrives with minimal care, needing only plentiful light to encourage spine development and occasional watering, as it is adapted to desert conditions. It exhibits surprising frost tolerance, enduring temperatures down to −4 °C (25 °F), but cannot survive lower temperatures. In cultivation, it performs best in part shade to full sun, with very low water needs, and prefers well-draining soils.CC BY-SA 4.0

Plant Description

  • Plant Type: Succulent
  • Height: 0.5-2 feet
  • Width: 0.075-0.3 feet
  • Growth Rate: Slow
  • Flower Color: Pink, Purple
  • Flowering Season: Spring, Summer, Fall
  • Leaf Retention: Evergreen

Growth Requirements

  • Sun: Part Shade, Full Shade
  • Water: Very Low, Low
  • Drainage: Fast

Common Uses

Drought Tolerant, Low Maintenance, Potted Plant, Rock Garden

Natural Habitat

Arid highlands of central Mexico

Other Names

Common Names:

Scientific Names: , Mammillaria rhodantha, Cactus chrysacanthus, Mammillaria rutila, Mammillaria fulvispina, Mammillaria phaeacantha, Mammillaria diacentra, Mammillaria rhodantha var. sulphurea, Mammillaria fuscata var. sulphurea, Mammillaria rhodantha var. crassispina

GBIF Accepted Name: Mammillaria rhodantha Link & Otto