Old Man Cactus (Cephalocereus Columna-trajani) is a perennial cactus in the Cactaceae family with moderate care difficulty. It requires low watering and full sun light in USDA hardiness zones 9-11. This plant is safe for cats and dogs.

A large, columnar cactus native to Mexico, known for its tall, non-branching green stems covered with white hairs.

Old Man Cactus

Old Man Cactus

Cephalocereus Columna-trajani

A large, columnar cactus native to Mexico, known for its tall, non-branching green stems covered with white hairs.

Quick Facts

Type
cactus
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Low
Light
Full Sun
Hardiness Zones
9-11

Safety

🐕
Pet Safe
⚠️
Not Child Safe
Non-Toxic

Growing Conditions

Soil Types:sandy, rocky, well-drained
Indoor:No
Outdoor:Yes
Garden Use:specimen plant, drought-tolerant landscaping, ornamental

Care Calendar

Monthly care tasks for Old Man Cactus

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Old Man Cactus
Old Man Cactus detail

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Taxonomy

Family:Cactaceae
Genus:Cephalocereus