Japanese maple Acer 'Jordan' - Hardy plantNice and bright! The Japanese maple 'Jordan' (Acer shirasawanum) is stunning! That's because of the bright lime green leaves. The plant is a perennial. This means you can enjoy the bright coloured leaves of the maple again next year! Prune it in winter. Then remove dead or protruding branches. Plant the Acer somewhere in partial shade. Water the plant sparingly. Water it more during dry periods. The maple needs well drained soil.