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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.
'My Dream' is a bushy evergreen shrub with mid-green foliage and long spikes of double, white flowers
Garden Girls Series is a collection of compact, 'bud-blooming' heathers with dark green foliage and flower buds in a wide range of shades of red, pink and white; the flower buds do not fully open and so provide a long-lasting display of colour from summer into autumn.
'Winter Chocolate' is a low growing shrub that begins spring with yellow foliage that turns green and orange through summer, deepening to brown through autumn and winter. Small lavender flowers are borne from summer to autumn
'Dark Star' is a compact, spreading evergreen shrub to 20cm tall, with dark green foliage and spikes of semi-double, bright crimson flowers
'Firefly' is a compact evergreen shrub with red-brown foliage, becoming bright orange red in winter. Flowers purplish-pink, in short erect spikes
'Velvet Fascination' is a distinctive heather with white flowers and silvery grey-green foliage which darkens in winter without becoming drab
'Dark Beauty' is a compact heather to 25cm tall, with dark foliage and spikes of dark cerise flowers deepening to ruby-red, from August to October
'Silver Rose' is a compact evergreen shrub of erect habit, with good silvery-grey foliage, and pale mauve flowers in long racemes
'Glenfiddich' is a cultivar, to 30cm tall, with feathery, fresh green foliage in spring and summer that turns a bronze-red colour through autumn and winter. The small lilac-pink flowers are borne from midsummer to mid-autumn
'Roland Haagen' is a low, spreading evergreen shrub to 15cm tall, with yellow foliage turning orange, tipped red, in winter, and short racemes of mauve-pink flowers
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We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.