The Desert Rose (Adenium plant) is a perennial succulent that's native to Arabia’s semi-arid regions and eastern as well as western tropical Africa. Weird isn't it? How did it end up in Malaysia and Singapore? This is a big question that I would like to ask as my grandmother has quite a few adenium plants which she planted many many years ago.
While desert roses are easy to grow, they don't do well outdoors if the temperatures fall below 59 degrees Fahrenheit (about 15 degrees Celcius). Because they make excellent container plants, they do quite well outside your home and greenhouses. For this reason, they are popular to use as bonsai plants but do remember though, leaving in the house without sunlight will not make the plant healthy as their leaves needs to go through photosynthesis. That is why Desert Rose is meant to be kept outdoor with plenty of sunlight.
Oh yes, speaking about adenium nicknamed "desert rose", this plant is never afraid of too much rain or too much sunlight. Remember, aeration is important for adenium and you do not need to worry that that adenium needs to be watered every day. Remember, use the correct soil mixture and your favourite plant will never be afraid of the rain. That's for sure!