Haworthia retusa: How to Grow and Care for Star Cactus

Haworthia retusa Star Cactus

Scientific name: Haworthia retusa

Common name: Star Cactus

A small, slow-growing Succulent with translucent leaves is called “Star Cactus”. Haworthia retusa is easily grown indoors. As it grows, it produces clumps. There are small white flowers in the spring and summer.

Quick Look at Haworthia retusa

  • Full sun to partial shade
  • Typical water needs for a succulent
  • Plant grows up to 3″ (7.5 cm) tall
    Plant grows up to 6″ (15 cm) wide
  • Zone 9a (Minimum 20° F | -6.7° C)
  • Not cold hardy
  • Propagation by stem cuttings and offsets
  • Typically non-toxic to humans and animals
  • Summer Dormant

General Care for Haworthia retusa “Star Cactus”

It is a great addition to a rock garden or windowsill. The windowed leaves of Fenestraria rhopalophylla “Baby Toes” collect sunlight.


The watering needs for a succulent are typical. The “soak and dry” method will allow the soil to dry out completely between waterings.

Where to Plant

If you live in a zone that gets colder than 20 F, it’s best to plant this plant in a container that can be brought indoors. It does well in full to partial sun when planted indoors.

How to Propagate Haworthia retusa “Star Cactus”

Stems and offsets can be used to grow the Haworthia retusa.


Use a sterile, sharp knife or pair of scissors to grow star cacti. Allow the main plant’s stem to callous for several days before placing it on well-draining soil. Water whenever the soil has dried out.


There will be small offsets around the base of the plant. Pull these up and allow the offsets to dry for a couple of days before replanting.


  1. Haworthia retusa (Star Cactus) – Wikipedia

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