Brahea armata The Mexican blue palm is the most distinct of Braheas with its silvery-blue fronds and massive trunk. Reaches abour 50 feet tall with age. This palm is the most commonly grown of Braheas. The inflorescence is large, dramatic and tannish-colored drooping gracefully and looking very nice when in bloom. Definitely a proven winner in the landscape this species is known to take some pretty cold temperatures.
Some sources say that they can take near mid-twenties, other sources say high teens.
The author knows plants that have taken as low as 17 degrees with no damage. The fronds are somewhat more pendulous at the tips than on other species. Very rare in the trade. Not at all grown in the Tucson trade. Very small, this palm reaches only near 8 feet tall.