Pseudolithos migiurtinu

In last year, I got 3 Pseudolithos migiurtinu from my friend.  I was told that they can be rotten easily.  I kept them under another plant so they got the shade light.  Besides, I watered them about 2-3 times/week.  (I live in the tropical country so it's summer now) They wre fine until yesterday.  One of them was rotten.  So poor!  I also find the information about Pseudolithos migiurtinu and hope that everyone will not make the mistake same as me.

Sun Exposure: Sun to Partial Shade, Light Shade

Bloom Color: Maroon (Purple-Brown)

Watering : 2 to 3 times a week during the hot summer, under very strong light (not full sun) and once a week during sunny winter days.. 

Pseudolithos migiurtinus is named from the Greek 'pseudo', false 

and 'lithos', stone, for the appearance of the stems.  The genus has a restricted distribution of  Somalia, Oman and Yemen.  These plants constitute some of the most succulent species among the stapeliads.  They are difficult in cultivation and are often grown on grafts with the stock usually beingCeropegia linearis.  

Pseudolithos migiurtinus is one of the rarest of the succulent milkweeds (Asclepiadaceae).   These plants, like most of the succulent milkweeds (stapeliads) are generally fly pollinated and conveniently smell like rotten meat or some type of manure.  This species is usually single stemmed, so propagating them by cuttings is not a winning situation.