Neobuxbaumia cactus (Neobuxbaumia polylopha)
Polylopha
About this plant
Neobuxbaumia polylopha is a tall, columnar cactus native to Mexico. It has multiple ribs with spines along them and can grow several meters tall. This cactus produces large, white flowers at night. It is often grown as an ornamental plant in gardens and collections due to its striking appearance and drought tolerance.
Taxonomy
Higher classification: Order Caryophyllales
Origin & Distribution
- Native region
- Mexico
- Distribution
- Native to arid regions of northeastern Mexico; cultivated in dry gardens and cactus collections worldwide.
Care
- Suitable locations
- Indoor, Outdoor, Balcony, Greenhouse
- Preferred window facing
- South-facing, West-facing, East-facing
- USDA hardiness zones
- 9-11
- Soil pH
- 6.0-7.5
- Soil type
- well-draining sandy or cactus potting mix
Watering. Water sparingly during the growing season, allowing soil to dry completely between waterings. Do not water in winter when the plant is dormant.
Fertilizing. Feed with a balanced cactus fertilizer during the growing season (spring and summer) every 4-6 weeks. Avoid fertilizing in winter when the plant is dormant.
Neobuxbaumia polylopha is a slow-growing cactus that prefers bright sunlight and well-draining soil. It is drought-tolerant but needs occasional watering during its growing season. Overwatering can cause root rot, so water sparingly and allow soil to dry out between waterings. It requires minimal maintenance and is suitable for experienced cactus growers.
Propagation
- Propagation methods
- Seeds
Ornamental features
- Flowering
- Yes
- Flowering period
- summer
Tall columnar form with multiple ribs and spines; large white nocturnal flowers.
Toxicity & Safety
Not known to be toxic, but spines can cause injury if touched carelessly.
Allergy information
Neobuxbaumia polylopha is not known to cause allergies. People sensitive to cactus spines should handle it carefully to avoid skin irritation or injury.
Common problems
Overwatering can lead to root rot. Insufficient light may cause weak growth. Pests like mealybugs can occasionally appear.
Uses
Primarily grown as an ornamental plant in gardens and collections for its impressive size and flowers.
Notes
Handle with care due to sharp spines. Repotting is rarely needed due to slow growth. Protect from frost as it is sensitive to freezing temperatures.