This evergreen U.S. National Arboretum introduction can provide a screen or hedge any time of year, and can establish itself in a short period of time. Aggressive pruning will stimulate Pyracantha to grow quickly, up to 2 feet in a year. 'Navaho' firethorn is drought and disease resistant (unlike other Pyracantha cultivars ‘Navaho’ is resistant to fire blight and scab). 'Navaho' firethorn is hardy in USDA Hardiness zones 6 to 9, although some plants have survived mild zone 5 winters. You can view this plant in the Introduction Garden.