Rubus alumnus, commonly known as the Highbush Blackberry, is a deciduous shrub native to a variety of habitats including open woodlands, forest edges, and riparian areas across eastern and central North America. It typically grows to a height of 5-6 feet (1.5-1.8 meters) with an equal spread, featuring arching canes and compound leaves with toothed leaflets. The plant produces clusters of white to pale pink flowers in late spring to early summer, which are moderately showy and attract pollinators. Following the flowering season, the shrub bears edible blackberries that are attractive to both humans and wildlife.

The Highbush Blackberry is valued for its fruit production and is used for both culinary and wildlife habitat purposes. It is often found in home gardens, naturalized areas, and as part of restoration projects. This species prefers well-drained soils, tolerates a range of soil types, and is best grown in full sun to part shade. While it requires regular moisture, it is relatively drought-tolerant once established. Gardeners should be aware that the plant can spread aggressively via root suckers, potentially becoming invasive in some areas. Pruning is recommended to maintain a tidy appearance and to promote fruiting.CC BY-SA 4.0