what species or hybrid ? x'Florian , debbertiana - jaumavensis - ehlersae have you some flower ?
for me it is a hydroponic substrate , 'in situ ' the substrate is quite different
the dormancy is necessary for a lot of plant , otherwise they would wither .
here for the mexican ping the succulent stage are necessary for them like 'in situ'
some of mine in mineral substrate actually not in dormancy
http://pinguicula.free.fr/ping2010bis.JPG
jeff