Quick Facts
Key growing and identification information for Haworthia retusa.
Identification
Look for these characteristics when identifying Haworthia retusa.
How to Grow Haworthia retusa
Use these growing guidelines as a starting point and adjust for local conditions.
Light
Haworthia retusa grows in full sun to partial shade and is well suited to bright indoor locations.
Introduce stronger direct sunlight gradually to reduce the risk of sun damage.
Water
Use the soak-and-dry method. Water thoroughly, then allow the soil to dry completely before watering again.
Avoid leaving the roots in consistently wet soil.
Soil
Plant Star Cactus in fast-draining succulent soil. Containers should have an open drainage hole that allows excess water to escape.
Temperature
This plant is not cold hardy. Protect it when temperatures approach 20°F (-6.7°C).
In colder climates, use a container that can be moved indoors.
Indoor Growing
Its compact size and tolerance for indoor conditions make it suitable for windowsills, desks and small plant collections.
Outdoor Growing
In suitable climates, Star Cactus can be grown in containers or rock gardens with appropriate drainage and light.
Propagation
Offsets
- Locate a healthy offset growing beside the parent plant.
- Carefully separate the offset from the parent.
- Allow the offset to dry for one to two days.
- Plant it in a small container filled with well-draining succulent soil.
- Allow the soil to dry between waterings while roots become established.
Cuttings
- Use a sharp, sterile knife or scissors to remove a healthy cutting.
- Allow the cut surface to callous for several days.
- Place the cutting in well-draining succulent soil.
- Water only after the soil has dried completely.
Scientific Classification
The botanical classification currently used for this plant profile.
| Kingdom | Plantae |
|---|---|
| Clade | Tracheophytes |
| Clade | Angiosperms |
| Clade | Monocots |
| Order | Asparagales |
| Family | Asphodelaceae |
| Subfamily | Asphodeloideae |
| Genus | Haworthia |
| Species | Haworthia retusa |
Toxicity: Haworthia retusa is typically considered non-toxic to humans and animals. However, prevent children and animals from chewing unfamiliar plants and contact an appropriate medical or veterinary professional if ingestion causes symptoms.
Sources and Image Attribution
Plant details are compiled from the existing Xerophyte.Garden profile and its cited botanical classification.
Primary image by Abu Shawka via Wikimedia Commons.
