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Spider Cactus in the GardenTags plant encyclopedia

Gymnocalycium horstii

 

Spider Cactus

Gymnocalycium horstii is a globular cactus up to 25 cm in diameter. It has a squat appearance and spines that are curved back towards the body. Gymnocalycium are eay plants to grow and will do well if potted on regularly every two or three years. Flowers are generally brightly coloured. Where temperatures fall below 10C, they must be cultivated under glass with heat.

 
plant Features
  • Spider Cactus likes full sun

    Full sun

  • Spider Cactus likes very little water

    Very little water

  • Spider Cactus is not frost hardy

    Not Frost hardy

  • Spider Cactus likes light and free draining

    Light and free draining

 
plant information

Common name

Spider Cactus

Latin name

Gymnocalycium horstii

type

Evergreens

family

Cactaceae

ph

5.0 - 7.0 Acid - Neutral

  • Light

    Spider Cactus likes full sun

    Full sun

  • Frost

    Spider Cactus is not frost hardy

    Not Frost hardy

  • Soil

    Spider Cactus likes light and free draining

    Light and free draining

  • Water

    Spider Cactus likes very little water

    Very little water

Plant & bloom calendar

  •  
    Best time to plant

full grown dimensions

The size of a fully grown Spider Cactus is 0.25meters x 0.20meters 0.25 M 0.20 M

Gymnocalycium horstii

Gymnocalycium horstii is a globular cactus up to 25 cm in diameter. It has a squat appearance and spines that are curved back towards the body. Gymnocalycium are eay plants to grow and will do well if potted on regularly every two or three years. Flowers are generally brightly coloured. Where temperatures fall below 10C, they must be cultivated under glass with heat.


Propogation

From Early Spring TO Early Spring

Moon cactus propagation is achieved by removing the offsets, which are smaller versions of the parent plant growing from the base of the rootstock. These divide away easily and root readily in a cactus potting soil.

 

Planting young plants

From Early Spring TO Early Spring

The moon cactus is usually sold already grafted in a process that removes the bottom of the Hibotan and the top of the rootstock cactus. The two halves are set together at the cut ends and soon heal together. The life of the moon cactus can be extended by re-grafting it onto a fresh rootstock.

 
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