North America Native Plant

Monarch Amazonvine

Botanical name: Stigmaphyllon emarginatum

USDA symbol: STEM3

Life cycle: perennial

Habit: vine

Native status: Native to Puerto Rico âš˜ Native to the U.S. Virgin Islands  

Synonyms: Banisteria emarginata Cav. (BAEM2)  âš˜  Stigmaphyllon lingulatum (Poir.) Small (STLI7)  âš˜  Stigmaphyllon periplocifolium (Desf. ex DC.) A. Juss. (STPE2)  âš˜  Stigmaphyllon rubrinervum Alain (STRU5)   

Monarch Amazonvine: A Golden Treasure for Tropical Gardens If you’re looking to add a splash of sunshine to your tropical garden while supporting native wildlife, meet the monarch Amazonvine (Stigmaphyllon emarginatum). This stunning climbing vine brings both beauty and ecological value to Caribbean landscapes, making it a fantastic choice for ...

Monarch Amazonvine: A Golden Treasure for Tropical Gardens

If you’re looking to add a splash of sunshine to your tropical garden while supporting native wildlife, meet the monarch Amazonvine (Stigmaphyllon emarginatum). This stunning climbing vine brings both beauty and ecological value to Caribbean landscapes, making it a fantastic choice for gardeners in Puerto Rico and the U.S. Virgin Islands.

What Makes Monarch Amazonvine Special?

The monarch Amazonvine is a true showstopper with its brilliant golden-yellow flowers that seem to glow against glossy green foliage. As a native perennial vine, it’s perfectly adapted to Caribbean conditions and plays an important role in supporting local ecosystems. The plant gets its regal name from its impressive climbing habit and the crown-like appearance of its distinctive winged flowers.

Where Does It Call Home?

This beautiful climber is native to Puerto Rico and the U.S. Virgin Islands, where it thrives in the warm, humid tropical climate. You’ll find it naturally occurring throughout these Caribbean islands, making it an excellent choice for authentic native landscaping projects.

Garden Appeal and Landscape Uses

Monarch Amazonvine is incredibly versatile in the landscape. Here’s how you can put this golden beauty to work:

  • Cover unsightly fences or walls with cascades of yellow blooms
  • Train over arbors and pergolas for natural shade with style
  • Use as a backdrop vine in butterfly gardens
  • Create vertical interest in tropical landscape designs
  • Add authentic native character to coastal gardens

Growing Conditions and Care

The great news about monarch Amazonvine is that it’s relatively low-maintenance once established. This hardy native thrives in USDA zones 10-11, making it perfect for year-round tropical climates.

Light requirements: Provide full sun to partial shade for best flowering. While it tolerates some shade, you’ll get more of those gorgeous golden blooms in brighter locations.

Soil needs: Well-draining soil is essential. This vine isn’t picky about soil type but doesn’t appreciate soggy feet.

Water requirements: Moderate watering works best. Water regularly during establishment, then allow the soil to dry slightly between waterings.

Planting and Care Tips

Getting your monarch Amazonvine off to a good start is straightforward:

  • Plant in spring or early summer for best establishment
  • Provide a sturdy support structure from the beginning – this vine can get substantial
  • Space plants 6-8 feet apart if planting multiple vines
  • Water consistently during the first growing season
  • Protect from strong winds that might damage the climbing stems
  • Minimal pruning needed – just remove dead or damaged growth

Wildlife and Pollinator Benefits

As a native plant, monarch Amazonvine is a valuable addition to wildlife-friendly gardens. The bright yellow flowers attract butterflies and bees, providing important nectar sources for native pollinators. By choosing this native climber over non-native alternatives, you’re supporting the local ecosystem and helping maintain the natural biodiversity of the Caribbean region.

Is Monarch Amazonvine Right for Your Garden?

This vine is an excellent choice if you’re gardening in tropical zones and want to:

  • Support native wildlife and pollinators
  • Add vertical interest with minimal maintenance
  • Create authentic Caribbean landscape character
  • Enjoy months of golden-yellow blooms

Keep in mind that monarch Amazonvine is only suitable for truly tropical climates (zones 10-11), so gardeners in cooler areas will need to look for cold-hardy alternatives.

With its combination of stunning flowers, easy care, and native heritage, monarch Amazonvine deserves a spot in every tropical garden. This golden climber proves that native plants can be both beautiful and beneficial – a winning combination for any Caribbean landscape.

Monarch Amazonvine

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Polygalales

Family

Malpighiaceae Juss. - Barbados Cherry family

Genus

Stigmaphyllon A. Juss. - Amazonvine

Species

Stigmaphyllon emarginatum (Cav.) A. Juss. - monarch Amazonvine

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