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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.
Listed in the RHS Plant Finder
This plant is listed in the RHS Plant Finder book. At present our information about this plant is limited to a list of the nurseries that supply it. In time we will be adding more details including a description, growing information, advice and photographs.
Over 70,000 plants and where to buy them
Britain’s best gardening annual, available now from RHS Mail Order and all good bookshops.
'Royalty' is a small but lax evergreen shrub with glossy dark green leaves and very large, light red, semi-double flowers in mid or late spring
Last-listed in the RHS Plant Finder in 2014
'Nicky Crisp' is a cultivar of hybrid origin with slow and compact growth, eventually reaching around 2-2.5m in height. Pale pink, double flowers, with a central display of yellow stamens, appear over 5-6 weeks in spring
'Cornish Snow' is a medium-sized shrub of lax, erect growth, with narrowly ovate, dark green leaves, the young growth tinted bronze. Single white flowers 4-5cm in width, tinged pink on reverse, open from midwinter
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