Sonoran Old Man Cactus (Pilosocereus Alensis) is a perennial cactus in the Cactaceae family with moderate care difficulty. It requires low watering and full sun or partial shade light in USDA hardiness zones 9-11. This plant is safe for cats and dogs. It can be grown indoors.

Pilosocereus alensis is a spiny, succulent, shrubby or tree-like cactus with columnar stems native to Western Mexico.

Sonoran Old Man Cactus

Sonoran Old Man Cactus

Pilosocereus Alensis

Pilosocereus alensis is a spiny, succulent, shrubby or tree-like cactus with columnar stems native to Western Mexico.

Quick Facts

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

Safety

🐕
Pet Safe
⚠️
Not Child Safe
Non-Toxic

Growing Conditions

Soil Types:sandy, gravelly, rocky
Indoor:Yes
Outdoor:Yes
Garden Use:ornamental, drought tolerant specimen

Care Calendar

Monthly care tasks for Sonoran 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

Sonoran Old Man Cactus
Sonoran Old Man Cactus detail

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Taxonomy

Family:Cactaceae
Genus:Pilosocereus