General Care for Disocactus flagelliformis “Rat-Tail Cactus”
This common cactus is synonymous with Aporocactus flagelliformis. It is also closely related to Disocactus phyllanthoides “German Empress.”
“Rat-Tail Cactus” does not tolerate extreme fluctuations in temperature, so it’s best to grow it where it won’t experience dramatic shifts in temperature. It does well in humid environments.
Disocactus flagelliformis “Rat-Tail Cactus” has typical watering needs for a succulent, except during the Fall and Spring when it is growing, and it requires more frequent watering. In the Winter, water sparingly. It’s best to use the “soak and dry” method, and allow the soil to dry out completely between waterings.
Where to Plant
Disocactus flagelliformis “Rat-Tail Cactus” is not cold hardy, so if you live in a zone that gets colder than 30° F (-1.1° C), it’s best to plant this succulent in a container that can be brought indoors. It does well in full to partial sun.
Plant in an area of your garden that gets 6 hours of sunlight a day. If planting indoors, place in a room that gets a lot of sunlight, such as near a southern-facing window (if you’re in the Northern Hemisphere).