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All ratings refer to the UK growing conditions unless otherwise stated. Minimum
temperature ranges (in degrees C) are shown in brackets
AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
A. palmatum (D) is a small, slow-growing deciduous shrub forming a broad, dome of lacy, dissected foliage. Leaves divided to base into 7-11 slender, deeply incised lobes, turning deep yellow or orange in autumn. Flowers small, purple
'Nigrum' is a deciduous shrub or small tree with 5- to 7-lobed leaves, deep purple in spring and summer, becoming crimson in autumn
'Shojo-shidare' is a low-growing spreading shrub, to around 2.5m high and wide, with pendulous branches bearing deeply-cut leaves. The leaves emerge deep purple with dark green colouring down the centre of each lobe giving them a two-tone effect. In autumn, the foliage turns a brilliant scarlet-red. Red flowers borne in spring may be followed by winged fruits in autumn
'Butterfly' is a rather upright shrub or small tree with 5- to 7-lobed leaves irregularly margined with creamy-white and often tinged pink. Occasionally has small red flowers in spring
'Fireglow' is a large, bushy, deciduous shrub ultimately reaching 4m in height. The leaves have 5-7 slender, pointed lobes, opening pinky-red in spring, developing to dark green heavily-flushed with dark red in summer, and turning purple-red in autumn. Small purple flowers are followed by red fruits
'Uki-gumo' is a deciduous, bushy, small to medium-sized shrub, eventually reaching a height of around 3m. The five-lobed, slightly-twisted leaves emerge predominantly white in the spring, with pink tips and shading, before maturing to green heavily-mottled and edged with white and pink
'Marlo' is a bushy, upright, deciduous shrub with five- to seven-lobed palmate leaves. These are deep green, greyish towards the centre, with a broad, irregular, cream to pink margin turning deep pink in spring and autumn
'Red Pygmy' is a slow-growing small deciduous shrub forming a mound of red-purple leaves, divided into seven narrow, almost untoothed lobes, with small purple flowers in spring
Dissectum Viride Group has a low, spreading habit and specimens are often multi-stemmed. The leaves are so dissected as to appear almost shredded. Although green through the spring and summer they show good autumn colour. Red flowers are a discrete attraction in spring. These develop into winged fruit, typical of the genus
'Sango-kaku' is a large deciduous shrub or small tree to 6m, with coral-red young branches bearing 5-lobed leaves which open pinkish-yellow, becoming green in summer and yellow in autumn. Flowers small, reddish
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