Contents
Description
Mammillaria Hahniana, also known as Old Lady Cactus, is a rare cactus species that is native to Mexico. It is a small, slow-growing cactus that forms clusters of cylindrical stems. The stems are covered with white, hair-like spines that give the cactus a fuzzy appearance. The stem color varies from green to blue-green, and it can grow up to 6 inches tall and 4 inches in diameter. The cactus produces small, pink flowers that bloom in the spring and summer.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Caryophyllales |
| Family | Cactaceae |
| Genus | Mammillaria |
Appearance
Mammillaria Hahniana is a small, slow-growing cactus that forms clusters of cylindrical stems. The stems can grow up to 6 inches tall and 4 inches in diameter. The stem color varies from green to blue-green, and it is covered with white, hair-like spines that give the cactus a fuzzy appearance. The cactus produces small, pink flowers that bloom in the spring and summer. The flowers are about 1 inch in diameter and have a funnel-shaped structure.
Care Guide
Mammillaria Hahniana is a low-maintenance cactus that is easy to care for. Here are some care tips:
- Water: Water the cactus only when the soil is completely dry. Overwatering can cause root rot.
- Fertilization: Fertilize the cactus once a month during the growing season with a balanced fertilizer.
- Soil: Plant the cactus in well-draining soil, such as a cactus mix.
- Sunlight: Place the cactus in a bright, sunny location. It can tolerate some shade, but it needs at least 4 hours of direct sunlight a day.
- Hardiness Zones: Mammillaria Hahniana is hardy in USDA zones 9-11.
Common Pests & Diseases
Mammillaria Hahniana is susceptible to mealybugs and spider mites. Mealybugs are small, white insects that suck the sap from the plant. Spider mites are tiny, spider-like insects that also feed on the sap. To prevent these pests, keep the cactus clean and dry. If you notice an infestation, use a cotton swab dipped in rubbing alcohol to remove the insects. Mammillaria Hahniana is also prone to root rot if overwatered.
Habitat
Mammillaria Hahniana is native to the states of Coahuila and Nuevo Leon in Mexico. It grows in rocky, desert-like habitats at elevations of up to 2,500 feet. The cactus is adapted to arid conditions and can withstand drought and extreme temperatures.
Question and Answer
Q: How often should I water Mammillaria Hahniana?
A: Water the cactus only when the soil is completely dry. Overwatering can cause root rot.
Q: What kind of soil does Mammillaria Hahniana need?
A: Plant the cactus in well-draining soil, such as a cactus mix.
Q: What are the common pests that affect Mammillaria Hahniana?
A: Mammillaria Hahniana is susceptible to mealybugs and spider mites.
Q: Where is Mammillaria Hahniana native to?
A: Mammillaria Hahniana is native to the states of Coahuila and Nuevo Leon in Mexico.
Related Plants
- Mammillaria Elongata
- Mammillaria Gracilis
- Mammillaria Karwinskiana
References
- Encyclopedia of Cacti by Clive Innes and Charles Glass
- The Cactus Family by Edward Anderson
- https://worldofsucculents.com/mammillaria-hahniana-old-lady-cactus/
