Acer palmatum ‘Purple Ghost’ – One of the most striking introductions from the Ghost Series with new leaves emerging a deep reddish-purple with darker veining. This is a true collector’s plant which continues to impress in autumn with its burnt orange to fiery red foliage. This cultivar is best sheltered from hot afternoon sun. Grows 10-12′ high by 5-6′ wide. Zone 5.
Acer palmatum ‘Ryusen’ (syn. ‘Ryu sei’) – A weeping cultivar with your typical palmatum or Japanese maple leaf form, it will need to be staked to gain any height – after which it will cascade gracefully. New foliage emerges a lime green and deepens into summer, this shifts back to gold with burnt orange highlights in fall. Grows 6-10′ high by 8-10′ wide. Hardy to zone 5.
Acer palmatum ‘Edna Bergman’ – An unusual upright form with leaves that emerge a true metallic bronze colour, often with rose tinting. This Australian introduction shifts to green in summer and warms up in autumn with rich red fall foliage. It is a vigorous cultivar that some have compared to ‘Osakazuki’. Grows 16-18′ high by 12-15′ wide. Hardy to zone 5.
Acer palmatum ‘Otohime’ – This maple is named after a mermaid queen found in a Japanese fable and is a good choice for bonsai or container culture. The smaller leaves emerge a golden-yellow with red highlights on the edges and matures to a fresh green by summer. Autumn tones vary from yellow to red. Strong horizontal growth. Reaches 2-3′ high by 3-4′ wide in 10 years. Zone 5.
Acer palmatum ‘Aekan Ie’s’ – This newer Japanese introduction is being heralded as an improvement over ‘Red Pygmy’. It is a linearilobum-type with thin thread-like lobes and foliage that emerges red, turning more bronze through the summer. ‘Aekan Ie’s’ also features attractive chocolate brown bark and tolerates full sun. Grows 6′ high by 4′ wide. Hardy to zone 5.