Scientific: Sabal mexicana
Common: Rio Grande palmetto, Mexican palmetto, Texas palmetto
Family: Arecaceae
Origin: Lowlands of southern Texas south to Nicaragua

Pronounciation: SAY-bal mex-i-KAY-na

Hardiness zones
Sunset
12-24
USDA 8-11

Landscape Use: Vertical accent, either singly or in groups, mesic and oasis landscape design themes only, great for use around pools or landscape water features.

Form & Character: Upright, boisterous, stately, robust, very clean.

Growth Habit: Evergreen perennial, monocot, single trunk, not self shedding, moderately slow to 60 feet, though rarely above 30 feet in Phoenix.

Foliage/texture: Large costapalmately compound fronds, 4 feet wide, glaucous green with sometimes filamentous margins, long slender petioles to 4 feet long, petioles unarmed; medium coarse texture.

Flowers & fruits: Dense clusters of cream white-colored flowers on 6 foot long stalks, bisexual, followed by clusters of small, black drupes (rounded fruit), edible.

Seasonal color: Creamy white flowers in spring followed by hanging fruit clusters during fall.

Temperature: Tolerant of Phoenix heat and cold so long as there is sufficient surrounding vegetation.

Light: Full sun to partial shade.

Soil: Will need applications of a balanced, controlled-release, "palm" fertilizer containing higher amounts of potassium and magnesium during the summer for best performance.

Watering: Needs supplemental water especially during summer.

Pruning: Little needed, only to remove dead fronds.

Propagation: Seed

Disease and pests: None

Additional comments: Rio Grande palmetto is a very clean looking fan palm with little litter. Not for use in xeric or desert landscapes in Phoenix. Sadly, this excellent fan palm is not commonly seen in Phoenix landscapes.