Hello ,i grow lithops for some 15 years now ,i still have more then 2000 of them ,the plant you show got to match water and to lesser light ,it s is changed his leaves whitout drying out first.It s not the good treatment and plant go dead on this way.
First groundmix,i used 1 part loam ,1 part sand ,1 part spagnum peat,1 part little stones (3 to 6mm )and you can add some perliet to.
Water ,i give only 2 a 3 times water on a year,when i water i used the tray methode and give water till the are very wet,you can mist them every morning when the weather is good.i water mostly in spring and add some insecticide for preventie,you may add some fertilizer to if you want she grow a bit faster,second watergift depends on the weather ,if it s a cool wet summer ,i not water in summer ,els i water after a very hot periode, then i give water for last time in october whit insecticide again ,if you got mealybugs on your plants is not so healty for them,i never see red spider on them.
In winter not a drup water,from october till end of mars,temps in winter arround 5°
This are very hardy plants if you not give to match water ,where it grows in the wild it s allmost never raining ,some times it s not raining for years ,only everyday a few hours mistt a day ,plants can take water by there bodys ,so if the humidity is high then you must not water at all .
Lithops not go dead from to dry ,she only go dead from to match water,this plants need very little care ,to match care for this and you lost for sure and can not hold them alive ,
I hope this helpt a bit for growing this on long term,
By the way ,this are the easyist plants for hold ,you must only not take care to match for them ,you must them forgot for a while,then no problems.
Edited by will9, 03 June 2012 - 16:34 PM.