Roble Cimarron: A Rare Gem for Tropical Gardens
Meet the roble cimarron (Tabebuia haemantha), a stunning native shrub that’s become something of a botanical treasure in Puerto Rico. This perennial beauty might not be the easiest plant to find at your local nursery, but for those lucky enough to grow it, it’s absolutely worth the effort.

What Makes Roble Cimarron Special?
The roble cimarron is a multi-stemmed woody shrub that typically reaches 13 to 16 feet in height, though it can sometimes grow taller or develop a single trunk depending on conditions. What really sets this plant apart are its spectacular trumpet-shaped flowers that bloom in vibrant pink to red clusters, creating a show-stopping display that hummingbirds and butterflies simply can’t resist.
Where You’ll Find This Native Beauty
This charming shrub is endemic to Puerto Rico, meaning it evolved there and exists nowhere else in the world naturally. It’s perfectly adapted to the island’s tropical climate and growing conditions.
Important Conservation Note
Here’s something crucial every potential grower should know: roble cimarron has a Global Conservation Status of S3, which means it’s considered vulnerable. With typically only 21 to 100 known occurrences and between 3,000 to 10,000 individuals remaining, this species is quite rare. If you’re interested in growing this plant, please only purchase from reputable sources that use responsibly sourced, sustainably propagated material. Never collect from the wild!
Perfect for Tropical Garden Design
Roble cimarron works beautifully as:
- A specimen plant that serves as a focal point
- Part of a native Puerto Rican landscape design
- An accent in tropical and subtropical gardens
- A pollinator-friendly addition to wildlife gardens
Growing Conditions and Care
This tropical native thrives in USDA hardiness zones 10-11, so it’s really only suitable for year-round outdoor growing in the warmest parts of the United States, primarily southern Florida, Hawaii, and of course, Puerto Rico.
For successful growing, provide:
- Well-draining soil (soggy roots are not this plant’s friend!)
- Full sun to partial shade exposure
- Moderate, consistent watering
- Protection from strong winds when young
Planting and Care Tips
Once established, roble cimarron is relatively low-maintenance. During dry periods, provide regular watering, but avoid overwatering as this can lead to root problems. The plant requires minimal pruning – just remove any dead or damaged branches as needed. Young plants benefit from some protection during their first year while they establish their root systems.
Wildlife and Pollinator Benefits
The nectar-rich flowers are magnets for hummingbirds, making this plant an excellent choice for anyone wanting to create a hummingbird garden. Butterflies also visit the blooms regularly, adding even more life and movement to your landscape.
Should You Plant Roble Cimarron?
If you live in an appropriate climate zone and can source plants responsibly, absolutely! Growing rare native plants like roble cimarron helps preserve genetic diversity and supports local ecosystems. Just remember that with its vulnerable status comes the responsibility to grow it thoughtfully and ethically.
For gardeners outside of zones 10-11, consider this plant for greenhouse growing or as a container plant that can be moved indoors during cooler months. While it requires more effort in these situations, the spectacular blooms and conservation value make it a worthy addition to any serious tropical plant collection.