Japanese maple Acer 'Ryusen' orange-green - Hardy plantBeautifully green in summer and strikingly orange in autumn. The special feature of the Japanese maple 'Ryusen' (Acer palmatum) is its drooping branches, that make it look like a waterfall of stars. The hardy shrub can be planted all year round. The shrub does not require pruning. If you want to prune anyway, do it in late summer or early autumn. Plant the Japanese maple in partial shade. The shrub prefers well drained soil. Give it extra water during