- This is what the Astrophytum asterias looks like
- The right location for Astrophytum asterias
- culture in the room
- Culture of Astrophytum asterias in winter
The sea urchin cactus (botanical Astrophytum asterias) is certainly a very decorative cactus. However, culture in the room is a bit difficult, so you should have enough experience in caring for cacti. Tips for growing Astrophytum asterias.
The sea urchin cactus is very demanding
This is what the Astrophytum asterias looks like
- Spherical somewhat flattened body
- grey-green color
- up to five centimeters high
- up to ten centimeters in diameter
- large yellow flowers with red interior
- no thorns
Like all astrophytums, the sea urchin cactus comes from the desert. It therefore needs a lot of light and warmth, but also cooler phases in between.
The right location for Astrophytum asterias
This type of cactus likes it bright and prefers direct sunlight. You should only install plant lamps in an emergency. A spot in the south-facing flower window is ideal. The Astrophytum must not be more than one meter away from the window.
In summer you are welcome to care for the sea urchin cactus on the balcony or terrace. You just have to bring him into the house in time, before the temperatures get too cool, especially at night.
culture in the room
When cultivating Astrophytum asterias indoors, you must provide a few conditions for the sea urchin cactus to thrive.
Water regularly with lime-free water during the main growth period, rainwater is best. Make sure that the substrate does not get too wet to prevent root rot. Always allow the soil to dry out between waterings.
Be economical with the fertilizer. It is quite sufficient if you provide the sea urchin cactus with some liquid fertilizer once a month. In winter there is no fertilization.
Culture of Astrophytum asterias in winter
From late autumn to the end of winter, the Astrophytum asterias takes a break. During this time, place it in a bright location where the temperature is between seven and ten degrees. The cactus does not tolerate frost!
In winter, keep the cactus almost completely dry.
tips
Like many ball cactus species, Astrophytum asterias can only be propagated from seeds. It is important that an evenly warm place is available. It takes several years for the cactus to flower for the first time.