I suggest you try this question on the orchid forum. Passion flowers are a very different type of plant.

I accidently posted on here thinking I was on the other forum ..please forgive me without any hard feelings from you all or comments I'm sorry

No blood, no foul! ;-)

it all depends on the conditions they are grown in.
Humidity and temps can all have an influence on the time a flower lasts

Hi...thank you will finish this question in the orchid sec..so sorry but Orchidguy u found me lol
Having so much trouble with my passion flowers they are so hating our cold nites ..droping buds dried up leaves right after a 48-58 nite ..I don't know what to do ? It's on my porch open windows warm days but unusual cold times hit it bad.caerulea passiflora..after the first nite of leaving out droped 6 buds ..then warm days more buds recooped ..Then thre other night very cold again..same reaction..after all these people said it is cold tolerate??? I read it isn't here in zone 10?thx

Is your caerulea in a pot? That may be the reason. 48-58 degrees is nothing for the caerulea. I'm in zone 8b and mine are in the ground. A week ago we dropped down to 32 and today we hit a high of 85. It's covered in flower buds that'll probably open in a week or so. I'm wondering if you might be over-watering? Passis really don't like wet feet. I've had passis in pots that I over-watered, and their leaves started to wilt. So I watered more, thinking they were thirsty, and then they started dropping buds.

Even in a pot your cool weather shouldn't affect a caerulea. I'm thinking something else is factoring in here. If not over-watering, then something else.

Yes it is in a pot about two feet high wqith a trellis can't spell it.. I tried not watering it thinking that was it heat was intence as well we hit 80-90's here doesn't like so much heat either.
Leaves got yellow dried up but only after severe cold drops in temps.
I adore this plant it means so much I stick my finger in real deep before watering it feels dry????????
I also read it likes to stay moist and does not like wind or cold makes a great house plant.

When it got real cold I brought it back in also thinking each time it was moved pissed it off...Geesh ..It reminds me of me I hate the high humidity and then drop into cold in hours it's crazy here for sure . In a decade we haven''t had severe cold in March ...
How long can I expect to see improvement?
Thx