North America Non-native Plant

Red Passionflower

Botanical name: Passiflora manicata

USDA symbol: PAMA15

Life cycle: perennial

Habit: vine

Native status: Non-native, reproduces and persists in the wild in Hawaii âš˜ Non-native, reproduces and persists in the wild in the lower 48 states  

Red Passionflower: A Vibrant Climbing Beauty for Warm Climate Gardens If you’re looking to add a splash of fiery color to your garden’s vertical spaces, the red passionflower might just catch your eye. This vigorous climbing vine brings tropical flair to any landscape with its stunning scarlet blooms and lush ...

Red Passionflower: A Vibrant Climbing Beauty for Warm Climate Gardens

If you’re looking to add a splash of fiery color to your garden’s vertical spaces, the red passionflower might just catch your eye. This vigorous climbing vine brings tropical flair to any landscape with its stunning scarlet blooms and lush green foliage.

What Is Red Passionflower?

Red passionflower (Passiflora manicata) is a perennial climbing vine that belongs to the passion vine family. This energetic grower produces long stems that can be either woody or herbaceous, making it perfect for covering fences, trellises, or arbors. The plant gets its common name from its eye-catching red tubular flowers that seem to glow against the backdrop of its green leaves.

Where Does It Come From?

This passionate climber isn’t a native to the United States. Originally from the Andes region of South America, red passionflower has been introduced to various parts of the U.S. and has established itself in the wild in California and Hawaii, where it reproduces on its own without human assistance.

Why Choose Red Passionflower?

There are several compelling reasons why gardeners are drawn to this vibrant vine:

  • Stunning visual impact: The brilliant red flowers create a dramatic focal point in any garden
  • Attracts wildlife: Hummingbirds and butterflies are particularly fond of the nectar-rich blooms
  • Fast coverage: Its vigorous growth habit makes it excellent for quickly covering unsightly areas
  • Versatile use: Perfect for arbors, pergolas, fences, or as a container plant in cooler regions

Growing Conditions and Care

Red passionflower thrives in warm climates and is best suited for USDA hardiness zones 9-11. In zone 8, it might survive in protected locations but could suffer damage during harsh winters.

Here’s what this tropical beauty needs to flourish:

  • Light: Partial shade to full sun (morning sun with afternoon shade works well in very hot climates)
  • Soil: Well-draining soil that doesn’t stay soggy
  • Water: Regular watering, especially during dry spells
  • Support: Sturdy trellis, fence, or arbor for the vine to climb
  • Space: Room to spread – this vine can grow quite large if left unchecked

Planting and Maintenance Tips

Getting your red passionflower established is fairly straightforward:

  • Plant in spring after the last frost date
  • Provide a strong support structure from the beginning
  • Water regularly but avoid overwatering
  • Prune annually to control size and encourage flowering
  • In cooler zones, consider growing in containers that can be moved indoors

A Word About Native Alternatives

While red passionflower can be a beautiful addition to warm-climate gardens, it’s worth considering native alternatives that provide similar benefits while supporting local ecosystems. Native passion vines like Passiflora incarnata (purple passionflower) offer stunning flowers and attract native butterflies, particularly fritillaries. Native honeysuckle species or trumpet vine (Campsis radicans) can also provide similar vertical interest and hummingbird appeal.

Is Red Passionflower Right for Your Garden?

Red passionflower can be a wonderful choice for gardeners in warm climates who want quick coverage and spectacular flowers. Its ability to attract hummingbirds and butterflies makes it a valuable addition to wildlife gardens. However, remember that this is a vigorous grower that will need regular pruning to keep it in bounds.

If you’re gardening in zones 9-11 and looking for a fast-growing vine with show-stopping flowers, red passionflower might be just what you need. Just be prepared to give it the space and support it craves, and don’t forget to consider native alternatives that might provide similar beauty while supporting local wildlife even better.

Red Passionflower

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Violales

Family

Passifloraceae Juss. ex Roussel - Passion-flower family

Genus

Passiflora L. - passionflower

Species

Passiflora manicata (Juss.) Pers. - red passionflower

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA