Haworthia Cuspidata (The Star Window Plant Succulent)

Haworthia Cuspidata Image

This plant is a cultivar, a cross between Haworthia retusa and Haworthia cymbiformis. It has translucent windows at the tips giving it the epithet Star Window Plant. It is a good cover plant due to its prolific offsetting.

Scientific Name:Haworthia Cuspidata.
Other Names:  Catevala cuspidata, Star Window Plant, Aloe cuspidata.
Growth Season:Spring and summer.
Preferred Temperature:It grows best in temperatures between 15 and 20oC (59-68oF). Temperatures between 10 and 15oC allow the plant to enter a season of vegetative rest. This rest is essential for flowering.
Hardiness Zone:USDA Zone 10-11.
Average Mature Height & Width:It rises to 0.3 meters and spreads to a maximum of 0.2 meters.
Dormancy:It gets dormant during the hot months of summer.
Toxicity:It is not toxic to pets and humans. The majority will only happen if one ingests it.
Haworthia Cuspidata Summary

Haworthia Cuspidata Physical Characteristics

It forms rosettes of lime-green leaves. The leaves are wedge-shaped with a pointy tip which is a translucent area. The translucent section of the leaf allows the sun’s rays to get into the thick leaf and support photosynthesis. These leaves form a star-like rosette, another feature from which this plant gets its name. It is stemless, and the rosette forms in concentric rings.

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Haworthia Cuspidata Care

This is an excellent plant to the pot and keeps indoors; it is small enough to keep on the window sill or desktop. It can use water from one drink for a long time as a succulent before requiring another. Allow the soil to dry out before watering again, like when you use the soak-and-dry method.

Keeping it under indirect sunlight or full shade works well with it. Adequate lighting is essential for its survival and quality. Also, poor lighting may affect the color of the foliage. This succulent is not cold hardy but can survive up to -1oC for a short time. However, it appears able to withstand outdoor winter rain quite well,

You can give it some fertilizer a few times in the growing season. The fertilizer should be a slow-release general-purpose fertilizer. Avoid feeding the plant too much nitrogen because it makes succulent leaves too watery and soggy. While properly used, the fertilizer enhances the plant’s foliage, flowers, and general health.

The substrate in which you grow the plant should be very well drained but moisture retentive. It prevents water logging and therefore saves your plant from root rot.  A 50:50 mix between loamy soil and gravel will work. However, you can buy a commercial cactus mix to grow it in.

DO YOU KNOW? Caring (propagating, pruning/trimming, beheading, watering, …) is a set of skills that is widely applicable to succulents. Read the in-depth guide here >>

Richard Miller – Succulent City

Haworthia Cuspidata Growth

This plant produces offsets prolifically, an ideal medium for propagation. Also, you can propagate it using leaf cutting. Viable seeds are rare.  Leaf cuttings take a little longer to get established as a plant than succulents, but you get there eventually.

It usually doesn’t need pruning except when you are looking for an offset or leaf cutting to propagate. Repotting is also rare because it is small and slow-growing. The main way to get the plant sick is by overwatering. Mealybugs, scale insects, and root insects are the primary pests.

Before you leave …

You can see all plants from the Haworthia genus on Succulent City on this page. Or the previous/next plant:

Succulent City chief editor


Succulent City

Hey everyone! Welcome to Succulent City! We are all about succulents, cacti, and a bit about air plants. Ten years back, in 2013, we began the journey with succulents. It started as a simple hobby, crafting and selling charming succulent-themed pins and decorations. But as time passed, our fascination with these remarkable plants grew, and we gained extensive knowledge about them. Therefore, Succulent City is the blog as you see it is now. Enjoy your visit and happly planting!

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Posted in Succulents