This can be caused by a few things.
Moving from inside to outside is quite stressful to the plant. Especially if you have to do this several times per week. It will be natural for bud drop to occur during this time.
Sometimes, adding phosphorus and potassium can help prolong buds, but if environment is against you, then you may have to wait a few years longer than normal for the plant to cope.
Alternatively, growing it indoors year round under horticultural lighting can grant you fruit rather quickly. It will be a lot better for the plant to remain in a steady environment and will provide better conditions for flowering.
This article will help you to grow the plant properly: https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-fruit-vines-in-pots.htm
Nothing on the internet, as it says they rarely produce fruit.
What I am finding is that it's best to only eat commercially available passiflora fruit from markets and not eat any of what is homegrown. The leaves, roots and unripe fruit are toxic so why take a chance? Fruit is not ripe till it falls off the vine. Here is variety information:
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-flower-varieties.htm
I need some ideas on climbing plants, evergreen or flower, that have an EXOTIC look about them, to go on my Japanese bamboo archway. Many thanks
My first recommendation for an exotic vine would be the Passion Flower. This article will offer more information: https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-flower-varieties.htm
According to my research, your area is equivalent to our USDA zone 9. Here are some more vines that will do well in your area: https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-9-10-11/selecting-zone-9-vines.htm
My husband just cut ours back--all of it, not just the dead vines.
While late winter is the preferred pruning time, I think your vines will be fine. Come spring, they should regrow. Plus, you may have some new plants spring up in other areas of your yard by seed dispersal.
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/cutting-back-passion-vines.htm
My passion-fruit is very thick and full of flowers. How long do they take to form? Can I pick green passionfruit and get them to ripen? Thank You Noelene Mayfield
They will not ripen very much off the vine and will take around 70 to 80 days for a fruit to mature, depending on variety. This article will give you more information:
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/how-to-harvest-passion-fruit.htm
I had to cut some of the plant for it was going into a tree, there were a lot of green fruits.
No, I would recommend throwing those fruit out. The unripe fruit and seeds are quite toxic. This article will help you to grow the plant:
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-flower-care.htm
Hello, My passion fruit leaves became yellow? Can you please advise .? When is best time to give food for soil? Thank you for your support, Fara Pourkiani
The first thing that you will want to do is test your soil's pH and nutrient content before you add anything. These articles will help: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
If you determine that you, indeed, have a nitrogen deficiency then you may feed right as the vigorous growing season starts.
The best way to feed, however, is mulching each year with fresh compost. This will break down over the year and give them nutrients slowly.
This article will help you to grow passion fruit:
https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-flower-care.htm