Uebelmannia

Description

Uebelmannia is a genus of cactus plants native to Brazil. It is highly valued by collectors for its unique appearance and rarity. There are only two known species in this genus, Uebelmannia pectinifera and Uebelmannia buiningii.

Taxonomic Information

Appearance

Uebelmannia is a small, slow-growing cactus with a globular or cylindrical shape. It can grow up to 10 cm in height and 8 cm in diameter. The plant is covered in distinctive, flattened tubercles that are arranged in a spiral. The tubercles are usually green or gray-green in color and have a waxy texture. Uebelmannia blooms in the summer, producing small, yellow or pink flowers that emerge from the top of the plant.

Care Guide

Uebelmannia is a relatively easy plant to care for, but it does have specific needs that must be met in order for it to thrive.

• Water: Water Uebelmannia sparingly, allowing the soil to dry out completely between waterings. Avoid getting water on the plant’s body, as this can cause rot.
• Fertilization: Fertilize Uebelmannia once a month during the growing season with a cactus fertilizer. Do not fertilize during the winter months.
• Soil: Uebelmannia prefers a well-draining soil mix that is specifically designed for cactus plants.
• Sunlight: Uebelmannia thrives in bright, indirect sunlight. Avoid exposing it to direct sunlight, as this can cause sunburn.
• Hardiness Zones: Uebelmannia is hardy to USDA zones 9b to 11.

Common Pests & Diseases

Uebelmannia is generally resistant to pests and diseases, but it can occasionally be affected by mealybugs, spider mites, and scale insects. These pests can be controlled with insecticidal soap or neem oil. Uebelmannia is also prone to rot if it is overwatered or exposed to cold temperatures for extended periods of time.

Habitat

Uebelmannia is native to the dry, rocky regions of Brazil. It grows in sandy or gravelly soil and is often found growing in crevices or on rocky ledges.

Question and Answer

Q: How often should I water Uebelmannia?

A: Water Uebelmannia sparingly, allowing the soil to dry out completely between waterings.

Q: What kind of soil does Uebelmannia prefer?

A: Uebelmannia prefers a well-draining soil mix that is specifically designed for cactus plants.

Q: What should I do if I notice pests on my Uebelmannia?

A: Pests can be controlled with insecticidal soap or neem oil.

Q: What is the hardiness zone for Uebelmannia?

A: Uebelmannia is hardy to USDA zones 9b to 11.

Related Plants

• Astrophytum
• Gymnocalycium
• Mammillaria
• Notocactus
• Parodia

References

• Anderson, E. F. (2001). The cactus family.
• Uebelmannia. (n.d.). Retrieved August 17, 2021, from https://cactiguide.com/cactus/?genus=Uebelmannia
• Uebelmannia. (n.d.). Retrieved August 17, 2021, from https://www.worldfloraonline.org/taxon/wfo-7000003169