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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.
Star Wars is a compact, bushy herbaceous perennial to 30cm in height with bronze-flushed, divided oval leaflets from summer to autumn. Colourful, pinkish-orange star-shaped flowers with yellow centres are borne from summer to autumn
'Sugar Plum' is a compact deciduous shrub with arching branches of lance-shaped leaves, whitish beneath, and long panicles of rich purple-red, scented flowers
Plants grown as A. africanus are evergreen perennials with strap-shaped leaves and erect stems to 0.8m, bearing umbels of deep blue, trumpet-shaped flowers in summer
'Clearview Louise' grows to around 1.5m tall. It blooms in summer and early autumn, with large flowerheads to 20cm across bearing petals blended in pale yellow and pink or bronze
'Rosea' is a small, vase-shaped, deciduous tree. The very small, small, single flowers are shell pink, opening in mid-spring from red buds
'Caecilia' is a compact ivy with small, light green, frilled leaves variegated with creamy-white; makes a good houseplant
Mary Rose is an upright shrub rose to 1.2m tall with twiggy growth and fragrant, cupped, double rose-pink, loose-petalled flowers 8-9cm across in summer and autumn
'Pleniflora' is a vigorous suckering medium-sized deciduous shrub, with prominently veined, light green leaves and solitary bright yellow, double flowers from mid-spring
'Knightii' is an evergreen shrub or small tree to 4m in height or more, with large elliptic leaves and pendulous, fragrant, hose-in-hose double, white flowers to 30cm in length
A. kolomikta is a large vigorous deciduous climber with twining stems. Leaves ovate, those of mature plants tipped with silver, later pink. Flowers white, male and female on separate plants. Grown for foliage effect
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