Re: Passiflora Caerulea we were given a potted Passiflora last summer and it bloomed well, indoors of course. The instructions that came with it that once it finished blooming repot it and carry it over winter in a semi-dormant state with good light. Then in early spring prune stems back to about 6 inches above soil, give as much light as possible, fertilize with a balanced fertiilizer. This we did and it is growing vigorously with stems 2 - 3 feet altho we were a little late getting going with the fertilizer. Someone suggested it is day length sensitive and should start blooming in July -- but no see any buds yet. It doesn't get a lot of full sun as it is in the east window and some trees growing in the yard, maybe we should move it to a south window ???? We live in western Alberta Allan
Too much fertilizer will produce strong growth but few blooms. Passiflora really like full sun, so you should try to get it in more light as well.