Haworthia Cooperi [Ha-WORTH-ee-a, Koo-PER-ee] is a varied and diverse plant species from the Asphodelaceae family.
These plants are widespread in Eastern Cape Province, South Africa.
Many gardeners prefer succulent Haworthia plants due to their adaptability.
The genus Haworthia species include:
You may hear Cooperi called by the common names:
- Window Haworthia
- Cushion Aloe
- Star window plant
- Cooper’s Haworthia
- Pearl plant
- Zebra cactus
Haworthia Cooperi Plants Care
Size & Growth
This plant is a slow-growing succulent producing clumps of small rosettes of fleshy, tiny green leaves.
It grows up to 2” inches long.
The short stem of this plant sprouts variegated leaves which almost reach the surface of the soil.
The stems have transparent tips enabling light to pass.
Flowering and Fragrance
The blooming time of this plant is in summer and spring.
The inflorescence of white-colored flowers grows on a peduncle, growing up to 12” inches.
Light & Temperature
H. Cooperi prefers to sit in bright light but doesn’t like direct full sun.
When this plant is growing in its native environment, it’s mostly situated under the shade of a tree, rock, or other objects.
It is best to place this plant on a windowsill facing west or east to get bright light for at least three to four hours during the day.
This plant prefers the warm temperatures during the summer but also grows well in the cooler temperature down around 50° degrees Fahrenheit (10° C).
The temperature should not be below 40° degrees Fahrenheit (4° C) as this result in a freezing injury.
The hardiness zones of this plant are 9 – 11.
Watering and Feeding
During the summer season, water this plant generously and evenly. Make sure to allow the soil to dry completely between watering.
During the winter season, decrease the amount of water to once a month.
Make sure there is no amount of water gathered around the rosette.
Feed this plant using a succulent fertilizer in the summer season, but never feed it in the winter.
Soil & Transplanting
Utilize a quick-draining succulent potting soil for this plant.
Avoid including sand in the soil mixture as this ends up clogging the pores, decreasing the drainage.
Mix the soil with pumice, aquarium gravel, or perlite.
Grooming and Maintenance
H. Cooperi is not a tricky houseplant to take care of with similar requirements of an Aloe.
Similar to all succulent plants, the main thing to watch out for is overwatering.
Make sure this plant never sits in too much water for prolong duration as this can cause damage to the roots.
If the container doesn’t have a sufficient drainage system, including a gravel layer at the bottom of the container.
In case the plant grows yellow or white leaves, it is a sign of too much sun.
On the other hand, the color of its green leaves starts to fade if the plant isn’t getting sufficient light.
When transferring the indoor plant outside during the warm season, be sure to do this gradually to avoid sunburn.
How to Propagate Star Window Plant
The propagation of these succulent plants is done at repotting time and taking offsets from the original plant.
Utilize sharp scissors or knife to cut the offsets close to the stem.
Include as many roots as possible.
The offsets must be allowed to dry off for a while before repotting.
Place these offsets in smaller pots while utilizing the same soil as the original plant.
Place this plant in a bright, warm spot, watering sufficiently for optimal growth.
Cushion Aloe Pest or Diseases
There are no significant diseases or pests issues with this plant.
However, be on a lookout for fungus gnats which occur if the soil is too moist.
Root rot and other fungal issues might occur if the plant is overwatered, or placed in a location with high humidity and dim lights.
Overwatering is a major concern with this plant and results in slow growth.
Window Haworthia Uses
These succulent plants look stunning in unique containers like baby shoes, teacups, and other decorative containers.
The most important thing is to ensure there is sufficient drainage in the container to help these plants grow best.
This plant is a popular choice in fairy gardening, miniature gardening, and dish gardening.