Answer: Passiflora vitifolia should thrive in full sun or partial shade when given moderate, regular water. The plants demand well-draining soil, so I suspect that while the sun exposure was correct, the soil just got too soggy over the winter months. Now that you've potted the plant up the drainage should improve. Cut back the withered stems to encourage new growth this spring and summer. If you decide to replant in the ground, amend the soil with organic matter to facilitate fast drainage prior to replanting your passiflora.
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