Acer palmatum 'Corvallis Broom' (Japanese Maple)

Corvallis Broom is a distinctive Acer palmatum cultivar prized for its compact dwarf habit with finely cut green foliage, ideal for containers, rock gardens, and tight garden spaces. It carries the refined four-season presence Japanese maples are loved for, with delicate spring leaf-out, a graceful summer canopy, and signature autumn fire.

Acer palmatum is a long-lived small tree from the woodlands of Japan, Korea, and China, bred over centuries into hundreds of cultivars. Tiny purple-red flowers appear in mid-spring before or with the leaves, followed by paired samaras that spin to the ground in fall and feed songbirds and small mammals. Mature specimens often live fifty to a hundred years and become the heart of the gardens they anchor.

In the Pacific Northwest, give this dwarf maple humus-rich, well-drained, slightly acidic soil and part shade with reliable afternoon shelter. Dwarfs and shrubby cultivars do beautifully in containers, on patios, and as foreground textural anchors, but they dry out fast in pots, so consistent water through summer matters. Sterilize pruning tools to avoid spreading Verticillium wilt, and watch for tip dieback (Pseudomonas) in cool wet springs.

If you'd like a Pacific Northwest native maple with the same understory grace, consider Acer circinatum (Vine Maple), Oregon's classic woodland-edge maple with brilliant fall color and deep ecological value. Acer macrophyllum (Bigleaf Maple) is the keystone PNW broadleaf maple for larger sites.