Help us achieve our goals:
make a donation »
Join the RHS today and
support our charity
Free personalised gardening advice
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Make a donation
Join the RHS today and support our charity
I have forgotten my password
Keep me signed in
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
Begin a new search
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.
'Loddon Pink' is a compact bushy shrub with narrow greyish leaves and short, fragrant, dusky pink flower spikes in summer
'Imperial Gem' is a compact evergreen shrub with narrow grey-green leaves and fragrant spikes of deep purple flowers in summer
'Richard Gray' is a compact evergreen shrub to 50cm, with relatively broad, silvery-grey foliage and spikes of deep purple flowers
'Sawyers' is a bushy evergreen shrub to 60cm, with linear, silvery-grey-green leaves and spikes of light purple flowers in mid summer
'Munstead' is a compact evergreen shrub, to 45cm tall, with narrow, grey-green foliage and spikes of small, highly-fragrant, blue-purple flowers in mid to late summer
'Loddon Blue' is a compact plant to 50cm in height, with narrow, grey-green leaves and deep blue-purple flowers
'Alba' is a robust evergreen shrub to 1m or more, with linear, grey-green leaves and long spikes of pure white flowers
'Nana Alba' is a bushy compact evergreen shrub to 30cm, with narrow grey leaves and white flowers in short spikes in late summer
'Wendy Carlile' is a compact bushy shrub with grey-foliage and dense spikes of white flowers with silvery calyces
'Miss Katherine' is a bushy evergreen shrub to 75cm in height, with narrow, grey-green leaves and highly fragrant spikes of light pink flowers with silvery-green calyces
Choose from hundreds of plants, bulbs, seeds and gardening products from our online shop.
Save now on all plants
& bulbs from the RHS Plants Shop
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.
Join the RHS today and get 12 months for the price of 9