Guaiacum coulteri
Care, watering, light and tips for Guaiacum coulteri on Floravia.
Quick facts
- Family: Zygophyllaceae
- Difficulty: Moderate care
- Watering: every 14 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Guaiacum coulteri
Guayacán (Guaiacum coulteri) is a slow-growing evergreen tree or shrub, prized for its extremely hard wood and beautiful purple or blue flowers that appear in clusters. It's an ideal plant for xeriscaping or as a standalone specimen in warm, dry climates, adding a splash of color and resilience. Its dense foliage and vibrant blooms make it attractive in both parks and patios.
Native range
Mexico and Central America
Care tips
It requires full sun exposure for optimal flowering. It is extremely drought-tolerant once established, so watering should be sparse, allowing the substrate to dry out completely between waterings. It prefers well-drained soils, even poor or rocky ones, avoiding waterlogging at all costs. A common mistake is overwatering, which can lead to root rot.
How to save a dying Guaiacum coulteri
- Warning signs
- Wilted, yellowing, or massive leaf drop; dry or brittle twigs.
- First aid
- Check drainage and soil moisture. If dry, water deeply. If waterlogged, aerate the substrate.
- What kills it
- Overwatering (especially in heavy soils) or lack of direct sunlight. Does not tolerate extreme cold.
- Can it be saved?
- Yes, if acted upon quickly. Ensure good drainage and sun exposure. Be careful with transplanting under stress.