North America Non-native Plant

Paperflower

Botanical name: Bougainvillea glabra

USDA symbol: BOGL4

Life cycle: perennial

Habit: vine

Native status: Non-native, reproduces and persists in the wild in the lower 48 states âš˜ Non-native, reproduces and persists in the wild in Pacific Basin excluding Hawaii âš˜ Non-native, reproduces and persists in the wild in Puerto Rico âš˜ Non-native, reproduces and persists in the wild in the U.S. Virgin Islands  

Paperflower: A Vibrant Non-Native Climber for Warm Climate Gardens If you’ve ever admired those stunning walls of magenta, purple, or white papery blooms cascading over garden walls in warm climates, you’ve likely encountered the paperflower (Bougainvillea glabra). This vigorous climbing perennial has made quite a name for itself in American ...

Paperflower: A Vibrant Non-Native Climber for Warm Climate Gardens

If you’ve ever admired those stunning walls of magenta, purple, or white papery blooms cascading over garden walls in warm climates, you’ve likely encountered the paperflower (Bougainvillea glabra). This vigorous climbing perennial has made quite a name for itself in American gardens, though it’s actually a South American native that’s found a second home in our warmer states.

What Makes Paperflower Special?

Don’t let the name fool you – those show-stopping flowers aren’t actually flowers at all! They’re colorful papery bracts that surround the plant’s tiny, inconspicuous white flowers. This clever botanical trick creates months of brilliant color that won’t quit, even in the heat of summer when many other plants are calling it quits.

As a twining and climbing plant, paperflower develops relatively long stems that become woody with age. It’s a true perennial that will come back year after year in suitable climates, eventually creating impressive displays that can cover entire walls, fences, or arbors.

Where Does Paperflower Grow?

Originally from South America, paperflower has established itself across several U.S. locations including Florida, Texas, Guam, Palau, Puerto Rico, and the Virgin Islands. It’s considered a non-native species that reproduces spontaneously in the wild in these areas.

Is Paperflower Right for Your Garden?

Paperflower thrives in USDA hardiness zones 9-11, making it perfect for gardeners in the warmest parts of the country. Here’s what you need to know:

Ideal Growing Conditions

  • Full sun exposure (6+ hours daily)
  • Well-draining soil – this plant hates wet feet
  • Hot, dry climates where it can really shine
  • Protection from hard freezes

Garden Roles and Landscape Uses

  • Privacy screening along fences or property lines
  • Colorful accent on walls, arbors, and pergolas
  • Mediterranean and xeriscape garden designs
  • Tropical and subtropical landscape themes

Growing Paperflower Successfully

Planting Tips

Choose your location carefully – paperflower needs a sturdy support structure since it can grow quite large and heavy over time. Plant in spring after all danger of frost has passed, giving the roots time to establish before any potential winter cold.

Care and Maintenance

  • Water regularly during the first growing season, then reduce frequency once established
  • Prune after the main flowering period to maintain shape and size
  • Fertilize sparingly – too much nitrogen reduces flowering
  • Provide winter protection in zone 9 areas

Wildlife and Pollinator Benefits

While paperflower does attract some butterflies and occasional hummingbirds, its wildlife value is relatively limited compared to native alternatives. The plant’s non-native status means it doesn’t support the complex web of native insects and wildlife that have evolved alongside indigenous plants.

Consider Native Alternatives

If you’re interested in supporting local ecosystems while still enjoying beautiful climbing vines, consider these native alternatives depending on your region:

  • Coral honeysuckle (Lonicera sempervirens) for southeastern states
  • American groundnut (Apios americana) for eastern regions
  • Virgin’s bower (Clematis virginiana) for various regions

The Bottom Line

Paperflower can be a stunning addition to warm climate gardens, offering months of vibrant color and relatively easy care once established. While it’s not native to the United States, it’s not currently listed as invasive in most areas where it grows. However, gardeners interested in supporting native ecosystems might want to explore indigenous climbing alternatives that provide similar beauty while better serving local wildlife populations.

Whether you choose paperflower or a native alternative, the key is selecting plants that thrive in your specific conditions and align with your gardening goals. Happy gardening!

Paperflower

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Nyctaginaceae Juss. - Four o'clock family

Genus

Bougainvillea Comm. ex Juss. - bougainvillea

Species

Bougainvillea glabra Choisy - paperflower

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