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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:
'Luteus' is a medium-sized, bushy deciduous shrub, with rough-textured, glossy, lanceolate leaves to 20cm in length, and small, highly fragrant, waxy yellow flowers in winter
C. praecox is a deciduous shrub with a bushy, much-branched habit, growing to 2.5m or higher against a wall. Leaves are lance-shaped, 5-12cm long, shining dark green. Flowers solitary or in small groups, almost stemless, borne in winter at the joints of the previous summer's shoots. Highly fragrant, the outer tepals almost tranparent, yellowish-green, inner tepals shorter, dark reddish purple
'Grandiflorus' is a bushy deciduous medium-sized shrub, with shiny lanceolate leaves to 15cm in length. Flowers small, highly fragrant, waxy yellow with maroon centre
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