The weather this year has been screwy here too, mainly well below normal temps all winter and spring. Are you talking about P. caerulea, a white and blue passie? If so it is cold hardy and once your temps stabilize should grow just fine. We get high temps with high humidity during July & Aug and my caeruleas don't seem to mind, of course we don't get such extreme swings in temp. I would stop watering and feeding it so much. They like to be on the dry side and don't need such frequent feedings. You might also consider using something that's high in potassium. Good luck.

Thank you ..Happy easter
I brought in in and trimed it back from all wilting leaves..Left by my sliding glass door ..Yes I believe it is P. Coerulea . It seems to be trying to come back there must be 12 little blooms one or two I'm praying will not die off like the last set.
I pray as it makes me so happy.
In my case here I feel it is the drastic heat high humidity and inside porch caused the wilting .. You could just die from it here maybe in direct light it is way over 100..I will watch any more suggestions , ideas welcomed .
Thank you all...God Bless