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