North America Non-native Plant

White Jungleflame

Botanical name: Ixora thwaitesii

USDA symbol: IXTH

Life cycle: perennial

Habit: shrub

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

White Jungleflame: A Lesser-Known Tropical Shrub If you’ve stumbled across the name white jungleflame in your plant research, you’ve discovered one of the more elusive members of the Ixora family. While its cousins get most of the gardening spotlight, Ixora thwaitesii remains something of a botanical mystery – and that’s ...

White Jungleflame: A Lesser-Known Tropical Shrub

If you’ve stumbled across the name white jungleflame in your plant research, you’ve discovered one of the more elusive members of the Ixora family. While its cousins get most of the gardening spotlight, Ixora thwaitesii remains something of a botanical mystery – and that’s part of what makes it intriguing!

What Exactly Is White Jungleflame?

White jungleflame is a perennial shrub that belongs to the coffee family (Rubiaceae). Like other shrubs, it’s a multi-stemmed woody plant that typically stays under 13-16 feet tall, though it can occasionally grow taller depending on conditions. Think of it as nature’s way of creating a living fence or backdrop that won’t tower over your entire yard.

Where Does It Come From?

Here’s where things get interesting – and a bit complicated. While white jungleflame has established itself in Puerto Rico as a naturalized species (meaning it reproduces on its own without human help), it’s not actually native there. The species name thwaitesii gives us a clue about its likely origins, as it honors the botanist G.H.K. Thwaites, who did extensive work in what’s now Sri Lanka.

The Reality Check: What We Don’t Know

Let’s be honest – white jungleflame is one of those plants that botanists know exists, but gardeners haven’t written much about. We’re missing some pretty important details like:

  • Specific growing conditions and care requirements
  • USDA hardiness zones
  • Wildlife and pollinator benefits
  • Invasive potential
  • Detailed appearance and flowering characteristics

This information gap makes it challenging to give you the complete growing guide you might be hoping for.

Should You Plant White Jungleflame?

Since we don’t know whether white jungleflame has invasive tendencies, and given that it’s already established as non-native in Puerto Rico, the responsible approach is to proceed with caution. If you’re determined to grow an Ixora species, you might want to consider:

  • Researching well-documented Ixora species with known growing requirements
  • Choosing native alternatives that provide similar aesthetic appeal
  • Consulting with local botanists or extension services about this specific species

A Better Path Forward

Instead of gambling on a plant with unknown characteristics, why not explore native shrub alternatives? Depending on your location, you might find native species that offer:

  • Reliable growing information
  • Proven benefits for local wildlife
  • Better adaptation to your local climate
  • No risk of unintended ecological impacts

The Bottom Line

White jungleflame represents one of those botanical puzzles that reminds us how much we still have to learn about the plant world. While it may be a perfectly lovely shrub, the lack of detailed growing information and uncertain ecological impact makes it a risky choice for most gardeners.

Sometimes the most responsible gardening decision is to admire a plant from afar while choosing better-understood alternatives for our own landscapes. Your future self – and your local ecosystem – will likely thank you for it!

White Jungleflame

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

Rubiales

Family

Rubiaceae Juss. - Madder family

Genus

Ixora L. - ixora

Species

Ixora thwaitesii Hook. f. - white jungleflame

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