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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.
S. byzantina is a carpeting, evergreen perennial, with thick, soft, oblong-elliptic leaves and stems densely white-woolly. Basal leaves are to 10cm long, in rosettes, flowering stems erect to 50cm in height. Flowers are purplish or pink, sometimes appearing striped, arranged in many-flowered whorls in an interrupted spike in summer. Several selections with varying leaf and flower colour are available. A valuable foliage plant
'Big Ears' is a mat-forming herbaceous perennial grown for its soft, white-hairy green leaves to 25cm in length, and small purple flowers in summer
'Silver Carpet' is a vigorous evergreen carpeting perennial to 20cm tall, grown for its dense mat of grey-white elliptic leaves to 10cm long which forms a striking ground cover
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 72,000 plants and where to buy them
Britain’s best gardening annual, available now from RHS Mail Order and all good bookshops.
Last-listed in the RHS Plant Finder in 2010
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