North America Non-native Plant

Yellow Poui

Botanical name: Tabebuia serratifolia

USDA symbol: TASE4

Life cycle: perennial

Habit: tree

Native status: Non-native, reproduces and persists in the wild in Puerto Rico  

Yellow Poui: A Golden Spectacle for Tropical Gardens If you’ve ever been lucky enough to witness a tree absolutely exploding with bright golden-yellow flowers, you might have encountered the stunning yellow poui (Tabebuia serratifolia). This spectacular flowering tree creates one of nature’s most breathtaking displays when it bursts into bloom, ...

Yellow Poui: A Golden Spectacle for Tropical Gardens

If you’ve ever been lucky enough to witness a tree absolutely exploding with bright golden-yellow flowers, you might have encountered the stunning yellow poui (Tabebuia serratifolia). This spectacular flowering tree creates one of nature’s most breathtaking displays when it bursts into bloom, transforming from an ordinary-looking tree into a golden beacon that can be spotted from miles away.

What is Yellow Poui?

Yellow poui is a perennial flowering tree that typically grows as a single-stemmed specimen reaching heights greater than 13-16 feet, though it can grow much taller in ideal conditions. As a member of the trumpet tree family, it’s known for its distinctive trumpet-shaped flowers that appear in dense, showy clusters.

Where Does Yellow Poui Come From?

While yellow poui has naturalized in Puerto Rico where it reproduces on its own, it’s actually native to South America, particularly Venezuela, Guyana, Suriname, and northern Brazil. In Puerto Rico, it’s considered a non-native species that has successfully established itself in the local ecosystem.

The Wow Factor: Why Gardeners Love This Tree

The main reason gardeners fall head-over-heels for yellow poui is its absolutely spectacular flowering display. When this tree decides to bloom, it doesn’t hold back! The bright yellow trumpet-shaped flowers appear in massive clusters, often covering the entire canopy and creating a golden dome effect. The flowers typically appear before or alongside new leaves, making the display even more dramatic.

Beyond its stunning blooms, yellow poui serves as an excellent:

  • Specimen tree for large landscapes
  • Focal point in tropical garden designs
  • Seasonal interest provider
  • Conversation starter (trust us, neighbors will ask about it!)

Garden Suitability and Design Role

Yellow poui works best in tropical and subtropical landscapes where it has room to spread and grow. It’s particularly well-suited for:

  • Large residential properties
  • Parks and public spaces
  • Tropical-themed gardens
  • Areas where you want a dramatic seasonal display

Keep in mind that this tree needs space – both for its roots and its canopy. It’s not ideal for small yards or areas close to structures.

Growing Conditions and Climate Needs

Yellow poui is definitely a warm-weather lover, thriving only in USDA hardiness zones 10-12. If you live anywhere that experiences frost or freezing temperatures, this tree isn’t going to make it through winter outdoors.

For optimal growth, yellow poui prefers:

  • Full sun exposure
  • Well-draining soils
  • Fertile, slightly acidic to neutral soil conditions
  • Protection from strong winds during establishment

Planting and Care Tips

Getting your yellow poui established successfully requires some attention to detail:

Planting: Choose a location with plenty of space and full sun. Dig a hole twice as wide as the root ball but no deeper. Plant at the same depth it was growing in the container.

Watering: Provide regular watering during the first year while the root system establishes. Once established, it becomes more drought-tolerant but still appreciates consistent moisture.

Mulching: Apply a 2-3 inch layer of organic mulch around the base, keeping it away from the trunk to prevent pest and disease issues.

Pruning: Minimal pruning is needed. Remove dead, damaged, or crossing branches and do any shaping during the dormant season.

Wildlife and Pollinator Benefits

One of the wonderful side benefits of growing yellow poui is its appeal to local wildlife. The abundant nectar-rich flowers attract:

  • Bees of various species
  • Butterflies
  • Hummingbirds

This makes it not just a beautiful addition to your landscape, but also a contributor to local ecosystem health.

Should You Plant Yellow Poui?

Yellow poui can be a stunning addition to the right garden, but it’s worth considering a few factors. Since it’s non-native to areas like Puerto Rico (though it has naturalized there), you might want to explore native alternatives that provide similar benefits while supporting local ecosystems.

If you do decide to grow yellow poui, make sure you have the right climate (zones 10-12 only), adequate space, and are prepared for its care requirements. The spectacular flowering display can certainly be worth it for gardeners who can provide the right conditions!

For those interested in supporting native plant communities, consider researching native flowering trees in your area that might provide similar aesthetic appeal while being better adapted to your local ecosystem. Your local native plant society or extension office can be great resources for these alternatives.

Yellow Poui

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Scrophulariales

Family

Bignoniaceae Juss. - Trumpet-creeper family

Genus

Tabebuia Gomes ex DC. - trumpet-tree

Species

Tabebuia serratifolia (Vahl) G. Nicholson - yellow poui

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