The ponytail palm is not a palm. In fact it is a succulent that looks like palm and belongs to the Ruscaceae family. Here is some information on them.
Facts & Care Sheet
Maximum height: Above 30 feet
Maximum width(spread): 10 to 15 feet
Native Range: Mexico, the semi-desert regions of southeastern Mexico to be exact.
Scientific Name: Beaucarnea Recurvata
Other common name(s): Bottle palm, elephant foot, Nolina palm
Growth rate: Slow
Propagation: By removal of basal offsets, seeds and stem cutting of multi-stemmed ponytail palms
Hardiness: High
Leaves: Long, thin and soft leaves
Sun: bright sunlight, also thrives in direct sunlight.
Water: Water thoroughly once a week. Water requirements vary with temperatures, atmosphere, zones etc. Remember it is a succulent and should not be over-watered, letting its soil dry won’t really harm it.
Soil: Fast draining, sandy
Fertilizer requirements: Very low
Temperature: Warm, arid temperature
Poisonous: No
Cold tolerance: Not very good at tolerating cold. Temperatures below 30 degrees Fahrenheit for extended periods can harm this palm tree.
Drought tolerance: Very high
Propagation
By Seed
By Offset removal
Ponytail Palm