Annuals

Passiflora caerulea

Blue passionflower

Intricate white flowers carry a blue-and-purple fringe above glossy, deeply lobed leaves. Tendrils let this vigorous vine climb a support, while container-grown stems can be trained around a hoop or allowed to trail. Give it room and regular trimming to keep a basket manageable.

At a glance

Sun: Full sun to part shade
Mature size: Height: 10–40 ft. when allowed to climb; smaller in containers · Spread: 3–6 ft. unpruned
Water: Moist, well-drained soil
Hardiness: USDA zones 6–10; baskets need winter root protection
Bloom: Blue and white; summer into early fall

Sizes & prices

10"$39.99

Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.

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Resistance & tolerances

Deer: Generally less favored; not browse-proof.
Wet soil: Moist soil is suitable if it drains well; avoid standing water.
Heat: Tolerates heat and humidity.

Resistance is not a guarantee; deer and rabbits may browse any plant.

Pollinators & wildlife

Attracts: Bees, Butterflies

Keep in mind: Leaves and stems are harmful if eaten; keep away from children and pets.

Seasonal interest

Garden uses: Trellises, patio containers and trained baskets.
Habit: Vigorous climbing vine.

Growing & care

Pruning: After flowering, shorten the current season’s growth by up to half.
Training: Guide tendrils onto a trellis or hoop; trim long basket shoots.
Winter: Protect hanging baskets from prolonged hard freezes; move into bright, frost-free shelter for reliable overwintering.

Sources & photo credits

NC State Extension

Photo: Flemming Christiansen · CC BY-SA 2.0

Image notes: Blue passionflower; resized without cropping.

Reviewed September 22, 2026. Growing conditions vary by location.