This cactus has yellow blooms and blooms many times in the blooming season. It is a grafted plant. Please see scale for size.

Origin of Name

Named for German horticulturist and botanist Hugo Baum (1867-1950), who discovered the species. The term "crest" refers to the mutation causing the cactus to grow in a wavy, fan-like pattern rather than the typical round shape. This mutation results in a cresting effect, where the stem expands laterally in a fascinating and unpredictable manner.

Technical Description of Plant

Mammillaria baumii crest exhibits a broad, fan-shaped growth, characterized by its wavy and folded appearance.

• The Mammillaria baumii crest boasts a fan-shaped crest growth pattern, with dense clusters of white spines that create a fluffy, almost snow-like appearance.
• Unlike its non-crested counterpart, which typically forms cylindrical stems covered in spines, the crested form spreads horizontally, creating intricate patterns and textures.
• The crest can vary in size, with some specimens reaching substantial widths.
• The plant is adorned with small, medium size yellow flowers that bloom in a ring around the crest's top, adding to its decorative appeal.
• The crested form is a result of a rare genetic mutation, making each specimen unique.

Origin of Plant

Mammillaria baumii, in its standard form, is native to Mexico, where it grows in arid and semi-arid regions. The crested form, however, is cultivated primarily for ornamental purposes and is less common in the wild. The mutation that leads to the cresting effect occurs spontaneously and can be propagated to produce new crested specimens.

Conservation Status

As a specific cultivar or mutation, Mammillaria baumii crest does not have a distinct conservation status separate from the general status of Mammillaria baumii. However, like many specialized plant forms, it is subject to the pressures of habitat loss and over-collection. Cultivating these plants in gardens and collections can help conserve the species by reducing demand for wild specimens.

Care Instructions

Crested Mammillaria baumii requires similar care to other Mammillaria species.

• It prefers bright, indirect light and well-draining soil.
• Water the plant sparingly, allowing the soil to dry completely between waterings, and reduce watering in the winter months.
• Provide a warm environment and protect from frost to prevent damage to the crest.
• Due to its unique shape, handling with care is essential to avoid breaking or damaging the crest.
• Fertilize during the growing season with a diluted cactus fertilizer to support healthy growth.