Acanthocereus tetragonus Fairy Castle Cactus Acanthocereus tetragonus Fairy Castle Cactus
Acanthocereus tetragonus Fairy Castle Cactus

Acanthocereus tetragonus

Fairy Castle Cactus

Fairy Castle is a beautiful miniature cactus that grows a lot of green branches. These branches have 5 sides, with small white spines on each side ribs. It is called the fairy castle for the reason that its branches clump together as it grows. It is easy to care for and is one of the most popular cactus among beginners. It is well suited for indoor plants.

Fairy Castle is a dwarf, columnar cactus that grows very slowly. Sometimes, when mature, it produces Nocturnal white or yellow flowers as well. But it takes a long time to become mature.


Key Features

  • Can be grown indoors if given enough light

    Better to keep it near a window where it gets enough sunlight.

  • Grows in Spring and Fall

  • Non-toxic to humans and animals

  • Not cold hardy

  • Partial sun to partial shade

  • Plant grows up to 6′ (1.8 m) tall

  • Propagation by offsets and seeds

  • Typical water needs for a succulent

    Use regular succulent watering methods. Don't know? Learn how to water succulents easily.

  • Zone 10a (Minimum 30° F | -1.1° C)

Details about Acanthocereus tetragonus "Fairy Castle Cactus"

General Care for Acanthocereus tetragonus “Fairy Castle Cactus”

Acanthocereus tetragonus “Fairy Castle Cactus” is a very popular plant, especially among beginners. It needs very little care and can be easily grown indoors. One thing that you should keep in mind, is that this cactus has a lot of spines. So take care when handling. Even its name means the same, i.e. Acanthto in Greek called akantha, meaning “thorn”.

Watering

Acanthocereus tetragonus “Fairy Castle Cactus” does not require any special watering schedule. You can use the same succulents watering method as for other succulents plants. It is best to water when the soil is completely dry. Otherwise, its roots may rot in wet soil.

Where to Plant

If you live in a colder environment, You should plant Acanthocereus tetragonus “Fairy Castle Cactus” in a container (use DIY succulent soil). Because it is not cold hardy, so you'll be able to bring it inside in winter. But provide about 2 to 3 hours of direct sunlight, if possible. As it grows well in partial sunlight or partial shade.

How to Propagate Acanthocereus tetragonus “Fairy Castle Cactus”

Acanthocereus tetragonus “Fairy Castle Cactus” can be propagated with cutting or seeds. The stem cutting is preferable as its better and easier to care for.

Propagate by Cuttings

To propagate Acanthocereus tetragonus “Fairy Castle Cactus” by stem cuttings, cut a stem from the main plant. Allow the removed stem to callous over for some days. Then place the stem in well-draining soil.

Remember to give water when the soil is completely dry. I have mentioned that at the last in watering succulents guide.

Propagate by Seeds

Although you can propagate Acanthocereus tetragonus “Fairy Castle Cactus” by seeds. But this is not the recommended method. Because it is a very slow grower.

To grow by seeds, place the seeds in well-draining succulent soil. Water them when the soil dries out. If you are living in a cooler area, you can place the seeds outdoor, otherwise, do it indoors with grow lights.

Where to Buy?

Pairs Well With

Faucaria tigrina “Tiger’s Jaw”