Beaucarnea recurvata
Native range: Eastern Mexico
Known names: Ponytail Palm, Elephant Foot Palm, Nolina recurvata
Hardiness: Keep above freezing, can dip into the freezing zone though.
Mature Size: 25-30' OUTDOORS in regions that this plant can be grown in. 
Light: Direct sun is prefered, less light = slower growth
Water: Let soil dry out, water more often during warmer months.
Soil: Standard potting soil, succulent-type soil
Dormancy Period: N/A
Pet-Safe: Yes
Plant Size: Growing in a 4" pot, shipped semi bare root
 
Not a true palm. B. recurvata will produce a caudex with looooong linear leaves that can droop down about 3-4 feet long! These plant is very slow growing even in their native habitat so have patience!