Notocactus Uebelmannianus Cactus Care & Buying Guide


Light requirements Medium
Water requirements Low
Ease of care Easy
Size Large
Toxicity Non-toxic
Zone 9b
Temperature resistance A little frost-hardy
Growth speed Medium
Indoor growing Suitable


Taking Care Of Notocactus Uebelmannianus

Ideal conditions

Notocactus Uebelmannianus grows well under filtered sunlight, which makes this cactus easy to grow both indoors and outdoors. With that said, if you have limited space, this monster of a cactus that grows up to around 20 inches tall will be best to keep outdoors.

Temperature-wise, Notocactus Uebelmannianus prefers warmer areas, but it’s somewhat frost-hardy and can withstand temperatures as low as 25 degrees Fahrenheit (-3.9 degrees Celsius).


If you’ve ever had a cactus, then the watering routine of Notocactus Uebelmannianus will be familiar to you – this plant should only be watered when its soil is dry to the touch. Cacti generally are very sensitive to overwatering, and their roots can rot easily from excessive amounts of water.

As winter settles, Notocactus Uebelmannianus will become dormant and thus require very little water. This cactus should do fine even if kept completely dry in winter, but you may water it very lightly about once a month. Keep in mind that the Notocactus Uebelmannianus cactus is more sensitive to overwatering in winter than in summer.

Where to plant

The soil requirements of Notocactus Uebelmannianus are similar to those of many other cacti – any fast-draining cactus mix should work well with it. For extra drainage, you may add pumice or perlite to the soil mix in a 1:1 ratio or more.

Location-wise, Notocactus Uebelmannianus cacti do well under filtered light. They do benefit from direct sunlight, but they tend to be less resistant to heat than some other cacti, especially on very hot days.

Providing Notocactus Uebelmannianus with filtered sunlight is easy both indoors and outdoors, which is why this cactus can be grown basically anywhere.

In winter, be sure to move this cactus indoors to protect it from cold. But if winters in your area are warm, then you may not need to do this.

General care information

Fertilize Notocactus Uebelmannianus throughout the growing season (spring & summer) to encourage its growth and supply the soil with nutrients. Fertilization may not be necessary if you’ve just repotted the cactus into fresh soil.

Use a cacti fertilizer mix diluted to half strength and fertilize the cactus around once a month.

Another thing that you may need to often do is repotting. Notocactus Uebelmannianus requires plenty of growing space for its roots, so it would be a good idea to repot it every spring or summer. The Notocactus Uebelmannianus cactus grows relatively quickly and gets quite big as well, so it will likely quickly outgrow its pot.

Before repotting the cactus, allow its soil to dry – this will allow for safer and easier removal from the current pot. Once removed, inspect the roots of the cactus and remove any rotten or damaged parts. Then, plant your Notocactus Uebelmannianus cactus in fresh soil and don’t water it for about a week to allow it to recover.


Tammy Slater

Tammy Slater is the founder of, a home and garden blog that provides inspiration and resources for homeowners and renters alike. A self-taught DIYer, Tammy loves nothing more than tackling a new project in her own home. When she's not blogging or spending time with her family, you can usually find her rooting around in the garden or at the hardware store.

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