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
Help us achieve our goals
Make a donation
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.
See what events are on near you and browse your bookmarked pages.
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.
'Millennium' grows to 1.8m, with long stems bearing strongly fragrant flowers 6cm across, the standards deep reddish-purple, the wing petals vivid purplish-red
'Royal Flush' is a vigorous annual climber to 2.3m, with strongly fragrant cream flowers, all the petals heavily flushed with clear light pink
'Mrs Bernard Jones' is a strong-growing annual climber to 2.3m, with very fragrant clear pink-flushed, white flowers to 6cm across
'Colin Unwin' is a strong-growing annual climber to 2m, with almost scentless flowers to 6cm across, the standards salmon-red, the wing petals a very slightly redder shade
'Bounce Navy Blue' is a dwarf, hardy annual cultivar that forms hummocks 30-60cm in height with dark blue flowers
'Margaret Joyce' is a climber to 1.9m, with strongly fragrant rich violet flowers 5.5cm across, the wing petals a slightly bluer tone
'Heathcliff' is a vigorous annual climber with greyish foliage and heavily fragrant, dark violet-blue flowers in summer and early autumn
'Brook Hall' is a vigorous sweet pea to 2m. The white flowers, carried on long stems are 5cm across, with reflexed, wavy standards and spreading, wavy wings
'Cathy' is a vigorous annual climber to 2m, with grey-green foliage and long-stalked racemes of up to four fragrant flowers 4.5cm wide, with ruffled creamy-white petals, opening from summer to early autumn
'Ron Entwistle' is an annual climber to 1.6m, with scarcely scented light red flowers 4.5cm across from early summer
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