Passion flower woes !

[Yiayoula]

We have a passion flower growing over the pergola at the end of the garden , planted about four years ago.
It looks healthy , loads of leaves and large buds but very few of them come into full flower .
Does anyone have any hints or tips, please ?

Do you ever feed it?

No , I don’t - I think because it’s always grown so vigorously I naively assumed it was healthy !
Is there any particular fertiliser you would recommend , please , @Geneticsbunny ?

I am hoping someone else will pop along who knows more than me but there is a ratio of potassium and some other chemicals which is in fertilisers and is important to check. One promotes flowering and the other promotes leafy growth. I would guess you want the flowering one.

Also I think the flowers only last a day or so, so maybe you arw missing them

Thanks, @Geneticsbunny, will look into that .
I was wondering if they are getting enough sunlight , as all the flowers we do get seem to be on one side of the pergola - annoyingly , the one least visible from the house !

A balanced formula, equal percentages of N,P,K supports leafy growth. For flowering you need proportionally more potassium (K). Tomato fertiliser will do the job.

but my guess is that it’s the sunshine that is the problem, so if it is healthy, I wouldn’t feed it.