gymnocalycium denudatum

Smooth ball cactus, Spineless ball cactus.

Care level

Easy

This charming round cactus stands out for its smooth, spineless appearance and pale green color that makes it look almost like a polished stone. In spring and summer, it produces stunning pink or white flowers that can be larger than the cactus itself, creating a delightful display that seems to float above its gentle curves.

Care & maintenance

Light

Bright indirect light

Bright light, usually located near windows but doesn't receive direct rays for more than an hour during the day.

Temperature

Wide range (5°C - 35°C)

Fertilization frequency

Low

Once per season.

Humidity & watering

Low

Allow the soil to dry between waterings.

An ambiant humidity between 20 and 50% is recommended.

Soil

Choose a Cactus mix: A gritty, fast-draining mix that prevents water retention. Replicates the sandy, rocky soils of arid regions.

If you want to create your own substrate, you can make a mixture of the following soils:

Click on the soil name for more information.

Pot

Standard size

Standard size

Prefer a pot with a classic width/depth ratio.

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Features

Size & growth

Small

Upright

Slow growth

This plant grows slowly. It can reach up to 30 cm in height or spread.

It grows upwards without support.

Toxicity

Toxicity table by species
Cat
Dog
Human
gymnocalycium denudatum thumbnail
gymnocalycium denudatum thumbnail
gymnocalycium denudatum thumbnail
gymnocalycium denudatum thumbnail

Reproduction & propagation

Fruits & flowers

Flowering & not self-pollinating

The gymnocalycium denudatum can produce flowers and therefore fruits.
This plant is not capable of self-pollination, it will not be able to produce fruits if it is not pollinated by another individual.

Propagation methods

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