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Overwintering Passion Vines and Snail Vine (Shell Plant)

Passiflora incarnata and P. caerulea die back but survive if ground doesn't freeze; others need pots brought indoors. Snail vine (Vigna caracalla) is only hardy in zones 9+—pot it and bring inside for winter. Keep cool, bright, water sparingly.

Perennials: Pothos: Rejuvenating Bare Vines; Overwintering Boston Fern in Kentucky: Indoors with Humidity; Winter Mulching Perennials: Keep the Bark, Add Light Layer If Needed; Overwintering Bougainvillea, New Guinea Impatiens & Begonia in Minnesota; Mandevilla in Texas: Pot Culture for Winter Protection; Why Azalea Buds Turn Brown and Fall Off Before Blooming; Diagnosing Bittersweet Vine Berry Drop; Planting Butterfly Bush in the Ground vs. Pot for New Jersey Winters; Winter Gardening in Florida; Best Perennial Vines for Containers on a Sunny New Jersey Deck: Overwintering Strategies

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