Brahea armata, commonly known as the Mexican Blue Palm or Blue Hesper Palm, is an attractive and distinctive palm tree with the following characteristics:
Maximum Height: Brahea armata typically reaches a maximum height of 15 to 25 feet (4.5 to 7.5 meters) with a similar spread. It forms a single, stout trunk crowned with a symmetrical cluster of blue-gray, fan-shaped leaves.
Minimum Temperature (RHS Zones): Brahea armata is hardy in RHS hardiness zones H2 to H3. This indicates it can tolerate temperatures down to approximately -5°C to -10°C (23°F to 14°F). It may require protection or winter shelter in regions with colder winters.
Aspect: Brahea armata thrives in full sun to partial shade. It prefers a well-drained soil with good airflow around its crown. Planting it in a location with adequate sunlight and protection from harsh, drying winds is ideal for its growth and overall health.
This palm is valued for its striking blue-gray foliage and its ability to add a touch of exotic beauty to gardens in suitable RHS hardiness zones. While it can withstand some cold temperatures, it is best suited for milder climates with protection from extreme cold snaps.