Contents
Description
Coryphantha is a genus of cacti native to North America. It is a small genus, comprising around 60 species, and is known for its unique appearance and hardiness. The name Coryphantha comes from the Greek words “koryphe,” meaning summit or top, and “anthos,” meaning flower. This refers to the fact that the flowers of Coryphantha species often appear at the top of the cactus.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Caryophyllales |
| Family | Cactaceae |
| Genus | Coryphantha |
Appearance
Coryphantha species are small, low-growing cacti that typically reach a height of six inches or less. They have a distinctive globular shape, with spines that are arranged in a star-like pattern around the top of the cactus. The flowers of Coryphantha species are usually pink or yellow, and are relatively large in proportion to the size of the cactus.
Care Guide
Coryphantha species are relatively easy to care for, and are well-suited to growing indoors or outdoors in a range of climates. Here are some tips for caring for Coryphantha:- Water: Coryphantha species are drought-tolerant and do not require frequent watering. Water sparingly, only when the soil is completely dry.- Fertilization: Coryphantha species do not require fertilizer, but can benefit from occasional feeding during the growing season.- Soil: Coryphantha species prefer well-draining soil that is slightly acidic. A cactus-specific potting mix is ideal.- Sunlight: Coryphantha species require bright, direct sunlight for several hours each day. Protect them from intense midday sun in hot climates.- Hardiness Zones: Coryphantha species are hardy to USDA zones 9-11.
Common Pests & Diseases
Coryphantha species are generally resistant to pests and diseases, but can be susceptible to root rot if overwatered. In addition, they may be vulnerable to infestations of common cactus pests such as mealybugs, spider mites, and scale insects. Regular inspection and treatment as needed can help prevent these problems.
Habitat
Coryphantha species are native to a range of habitats in North America, including deserts, grasslands, and rocky areas. They are adapted to harsh conditions, and are able to survive in environments with limited water and extreme temperatures.
Question and Answer
Q: Can Coryphantha species be grown from seed?
A: Yes, Coryphantha species can be grown from seed. Sow the seeds in well-draining soil, and keep them moist until they germinate.
Q: How often should I water my Coryphantha?
A: Water your Coryphantha sparingly, only when the soil is completely dry. In general, it is better to underwater than to overwater.
Q: Are Coryphantha species cold-hardy?
A: Most Coryphantha species are hardy to USDA zones 9-11, which means that they can tolerate temperatures as low as 20-30 degrees Fahrenheit.
Q: Can Coryphantha species be propagated by cuttings?
A: Yes, Coryphantha species can be propagated by cuttings. Simply cut a stem from the parent plant, allow it to dry for a few days, and then plant it in well-draining soil.
Related Plants
Here are some other cacti that are related to Coryphantha:- Mammillaria- Echinocactus- Ferocactus- Thelocactus- Rebutia
References
– Anderson, E. F. (2001). The cactus family. Timber Press.- Hunt, D., Taylor, N., & Charles, G. (2006). The new cactus lexicon (Vol. 1). DH Books.
