
Old Man Cactus
Taxonomy
Neobuxbaumia squamulosa
Neobuxbaumia
Cactaceae
Caryophyllales

How to care for Old Man Cactus
How often to water your Old Man Cactus

every 12
Old Man Cactus needs 0.5 cups of water every 12 when it doesn’t get direct sunlight and is potted in a 5" pot.
Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Water 0.5 cups every
12
Finding light for Old Man Cactus in your home

a window
Old Man Cactus love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Old Man Cactus does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Old Man Cactus in your home 🏡.
How to fertilize Old Man Cactus

Most potting soils come with ample nutrients which plants use to produce new growth.
By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Old Man Cactus after it doubles in size or once a year—whichever comes first.
Care Summary for Old Man Cactus
Old Man Cactus
Greg recommends:

0.5 cups every 12 days

< 1ft from a window

Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.
