Pyrus calleryana 'Fronzam,' commonly known as Frontier, is a striking cultivar of the Callery Pear tree, admired for its ornamental features. With a mature height of 8-12 meters, it forms an upright and narrowly pyramidal crown, adding vertical interest to landscapes. The glossy, dark green foliage turns vibrant shades of red and orange in the fall, creating a spectacular autumn display. 'Frontier' is valued for its resistance to fire blight and adaptability to various soil conditions. Its profusion of white blossoms in spring and robust growth make it a popular choice for street planting and ornamental use.
