Acer Palm. 'Ryusen' (Weeping Japanese Map)

Ryusen is a distinctive Acer palmatum cultivar prized for its strongly weeping waterfall habit with bright green foliage; height is determined by stake height, with branches cascading straight down. 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 lace-leaf maple humus-rich, well-drained, slightly acidic soil and morning sun with afternoon shade. The cool maritime climate suits Japanese maples beautifully, but lacy dissectum forms scorch at the leaf tips in hot afternoon sun and dry out fast in containers, so consistent water and a mulched root zone matter. Sterilize pruning tools to avoid spreading Verticillium wilt, and watch for tip dieback (Pseudomonas) in cool wet springs. Coastal sites are workable with shelter from salt-laden wind.

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.