CAUDICIFORMS
Caudiciform plants, also known as Fat Plants, are a morphologic grouping of many totally unrelated plants all having a fat stem/trunk or succulent roots that can be raised up in cultivation. These plants are wonderful curiosities and are very popular among those plant collectors and growers that like odd or peculiar plants.
How to take care of Caudiciform Plants / Fat Plants
Caudiciform plants do not require much maintenance. Because they are able to store water for dry periods, you do not need to water them regularly. During the months of active growth, water sufficiently only when the soil is completely dry. Avoid watering when the plant is hibernating.
Grow your plants is a well-drained soil and feed them when they show active sign of growth. With a little experience with caudex forming plants, you will understand that most of these plants quick adopt to the surrounding climate. You can grow them outdoors as specimen plants, indoor on a window sill, or in a greenhouse (if you live in a colder region). Generally, they prefer dry conditions and good exposure to the sunlight.
https://www.pacifichorticulture.org/articles/caudiciform-plants/
