Species

Passiflora incarnataPurple Passionflower

vineN. America Native

Purple Passionflower

The Story

Plant Bio

Passiflora incarnata, commonly known as the Passion Flower, is a vigorous, climbing vine characterized by its distinctive flowers, which are typically purple with unique filaments.

This particular cultivar, Butterfly Flower, is known for attracting butterflies and other pollinators and is also noted for its medicinal properties.

Uses & Benefits:

Passiflora incarnata offers stunning, fragrant flowers that attract pollinators, adding beauty and ecological value to gardens.

Its vigorous growth provides natural privacy screens and supports erosion control on slopes.

Serves as a vital nectar source for butterflies and hummingbirds, enhancing local biodiversity.

SpeciesPassiflora incarnataPurple Passionflower

Essentials

At a Glance

Plant Type

Vine

Height

180 inches

Width

36 inches

Light

Full Sun, Partial Sun

Zones

6, 7, 8, 9, 10

Water

Moderate

Humidity

Moderate to high

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic to humans and pets

Bloom period

Mid-summer – Late summer

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds into moist soil in early spring for best germination.
Mist cuttings regularly to maintain humidity and encourage root growth.
Plant in well-draining soil with a trellis or support for climbing.
Water consistently, especially during dry spells, to keep soil moist.
Fertilize monthly with a balanced, organic fertilizer during the growing season.
Prune after flowering to maintain shape and promote healthy growth.

Pro Tip

Provide a sturdy trellis and full sun to maximize flowering and growth.

Keep It Thriving

Care Guide

Do

Water deeply during dry periods to keep soil moist 🌱
Prune lightly after flowering to encourage new growth
Use organic mulch to retain soil moisture and suppress weeds

Don't

Avoid overwatering to prevent root rot ❌
Don’t prune in late fall or winter to protect buds
Refrain from using chemical fertilizers that can harm beneficial insects

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Harvest
Mulch
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Climbing vine on trellises for a vibrant focal pointWildflower border with fragrant bloomsVine-covered arbor for shade and visual interest

Companion Plants

Marigolds Sunflowers Lantana Salvia Coreopsis

Multiply

Propagation Methods

Good to Know

Common Questions

Purple Passionflower questions

What zones can Purple Passionflower grow in?

Purple Passionflower is hardy in USDA Zones 6–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Purple Passionflower deer resistant?

Not reliably. Deer may browse Purple Passionflower, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Purple Passionflower bloom?

Purple Passionflower typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Purple Passionflower need full sun?

Purple Passionflower does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Purple Passionflower drought tolerant?

Yes — once established (usually after the first full season), Purple Passionflower handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.