20 Mexican Blue Hesper Fan Palm Tree Seeds "Grey Goddess" Tropical & Cold Hardy! The Blue Hesper Palm Tree, scientific name (Brahea armata), is one of the most popular palm trees in Florida, because of its unique appearance and low maintenance. This stunning palm would be a great focal point for any landscape. Can also be grown indoors in a container. Brahea armata can tolerate cold temperatures down to 15F and can be grown in states like Alabama, Arizona, California, Georgia, Louisiana, Mississippi, Nevada, North Carolina, Oregon, Texas and Virginia. The Mexican Blue Fan Palm is Grown for it's Striking Bluish Green Foliage that is Extremely Resistant to Sun, Drought, & Strong Winds. Very Cold Hardy it can Survive Short Periods at 18 F. One of the Most Popular Palms for Landscaping, the Mexican Blue Palm was the Recipient of the Prestigious "Award of Garden Merit" of the Royal Horticultural Society. A Truly Striking Edition to any Landscaping or Container Planting.