Growing Living Stones at 63rd Parallel North

i water only the monilaria plants on the 12th and on the 23rd of march. i spray the monilaria plants on the 12th with miss orchid girl's spider mite solution and i fertilize them on the 23rd. i water my conophytum plant on the 12th. i decide not to give any more water for it after that because last year it created a dry sheath at this time. i don't see anything yet but i am hopefull. in the end of the month i gently press on the plant to see if it has new leaves inside it and the whole plant cracks. unfortunately i don't see anything inside and i have to conclude my conophytum is not going to make it. sadly it probably didn't like the spider mites , early repotting and the excess watering . rest in peace little one. i do not water my lithops or argyroderma plants this month. the development of the second flower spike halts but i think helping the plant split is more important than seeing the flowering. maybe the flowering continues next autumn when i resume water...