Special Web Offer - Get 50% OFF!
Grab Your Deal Now
PlantSnap
Plant Care
Sand dollar cactus
(Astrophytum asterias)
Also Known As
Sand dollar cactus, Star cactus, Sea urchin cactus, Asterias cactus
About This Plant
Astrophytum asterias is a species of cactus that is native to the deserts of North America. It is a small, slow-growing plant that has a distinctive star shape and is covered in white, woolly hairs.
Plant Care Instructions
Outdoor Size Range
12-24 inches (30-60 cm)
Light Requirements
Astrophytum asterias prefers bright, direct sunlight for at least 6 hours a day. It can tolerate some shade, but too much shade can cause the plant to become elongated and lose its star shape.
Humidity Needs
Astrophytum asterias prefers low humidity levels and can tolerate dry air.
Fertilizing Schedule
Astrophytum asterias does not require frequent fertilization. Fertilize once a month during the growing season with a cactus-specific fertilizer.
Pruning Guidelines
Astrophytum asterias does not require pruning, but you can remove any dead or damaged parts of the plant with a sharp, sterilized knife.
Common Pests and Diseases
Common pests for Astrophytum asterias include mealybugs, spider mites, and scale insects. These can be controlled with insecticidal soap or neem oil.
Indoor Size Range
6-12 inches (15-30 cm)
Watering Schedule
Astrophytum asterias is a drought-tolerant plant that should be watered sparingly. Water only when the soil is completely dry, and be careful not to overwater as this can cause root rot.
Temperature Range
Astrophytum asterias prefers warm temperatures between 70-90ยฐF (21-32ยฐC). It can tolerate cooler temperatures but should be protected from frost.
Growing Season
Astrophytum asterias grows best during the spring and summer months, and goes dormant in the winter.
Growing Difficulty Level
Astrophytum asterias is considered an easy plant to grow, making it a great choice for beginners.
USDA Hardiness Zones
Astrophytum asterias is hardy in USDA zones 9-11.
Did You Know?
Astrophytum asterias gets its common name, 'sand dollar cactus', from its distinctive star shape and white, woolly hairs, which resemble the markings on a sand dollar.
