Mazari Palm

Nannorrhops ritchiana

Extremely rare; from mountainous Afghanistan, India & Pakistan; this is the Worlds Hardiest Palm and is known to tolerate -14 F in dry climates, as well as heat up to 125F. Hardy north to zone 6 b where winters aren't excessively wet.
It is fast growing though rarely growing over 15 feet, however it has been known to approach 30 x 25 feet . The blue-green, fan shaped fronds reach up to 4.5 feet across. Old leaf bases persist and should be removed.
The white flowers are borne on branched spikes reaching above the crown that reach up to 5 feet in length.
The fruits are orange brown.
Hardy zones 7 to 11