Amelanchier x grandiflora 'Princess Diana'

Apple serviceberry, Amelanchier x grandiflora, is the graceful natural hybrid of two eastern native serviceberries, the downy and the smooth Allegheny, and 'Princess Diana' is among the loveliest selections of the group. The plant appeared in a cultivated garden in Elm Grove, Wisconsin in the mid-1980s and was granted U.S. Plant Patent 6,041 in 1987, chosen for a wide, gracefully spreading canopy, generous white bloom, and fall color that arrives early and holds late. Where many serviceberries grow stiffly upright, 'Princess Diana' reaches outward, a small tree with the airy, layered poise the name suggests.

In April, before or with the first leaves, the branches fill with showy white flowers rising from yellow buds, an early feast for bees. The new foliage unfolds with a bronze cast, deepens to green through summer, then turns brilliant scarlet and red in autumn, the trait that anchors the plant's reputation. Between bloom and fall color come the berries, small pomes ripening from red to deep bluish-purple by June, sweet and blueberry-flavored, and stripped almost overnight by waxwings, robins, and thrushes.

The old names tell the plant's story. Shadbush marks a bloom timed to the spring shad runs, Juneberry names the month the fruit ripens, and serviceberry most likely descends from Sorbus, the rowans whose small pomes the fruit recalls. Serviceberry fruit has long been food across North America, eaten fresh, dried into cakes, and pounded with fat and meat into pemmican by many Indigenous peoples, and later gathered by settlers for the Juneberry pies and jams still made today. 'Princess Diana' brings that heritage into a compact, ornamental tree.

Gardeners reach for 'Princess Diana' where a graceful small tree is wanted, as a lawn specimen, at a woodland edge, or among naturalized native plantings, and growers report good resistance to the leaf spot that can mar serviceberry foliage. Give full sun to part shade and average, well-drained soil, with even moisture through establishment. The reward is a true four-season tree: white flowers, June fruit for the birds, early and lasting red fall color, and a smooth gray winter silhouette spreading wide against the sky.