passion flowers

Question

I have three vines for about five years. They have bloomed only once. I have them in pots and take them on the deck in summer and bring them in in front of the patio door in winter. I live in PA. I trim regularly. What can I do to make them bloom? Thank you.

Answer 1

This article will help you.

https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-flower-not-blooming.htm