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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.
'Alison Taylor' grows to 60cm in height, with up to 5 flowers per stem, the standards ochre yellow fading to cream in the centre, the falls bright lemon yellow edged with ochre yellow
'Burrow Silver' is an evergreen perennial with narrow, cream-edged, green leaves and large, showy clusters of similarly variegated flower bracts, containing small green-yellow, flowers from early spring to mid summer
D. oleoides is a dwarf evergreen shrub of variable habit, usually under 60cm tall, forming low hummocks. Leaves are almost stalkless, squareish and bristle-tipped, glossy above and downy below when young. Flowers are white, cream or yellowish, sometimes pink tipped, borne in terminal clusters in late spring and early summer, scented. Fruits are orange-red
E. perriniana is an open to moderately dense small tree or large shrub from 4-10m high, branching from the base with smooth, flaking, off-white, grey or green bark. Aromatic, rounded bluish-green juvenile leaves and glaucous, pendent, lance-shaped adult leaves to 12cm long. Umbels of 3 white or cream flowers are produced in summer
'Harvington Raw Silk' is a perennial growing to about 30cm with fairly broad, upright, yellow-green, stem-clasping leaves. The cream flowers appear in early to midsummer in terminal clusters
'Royal Flush' is a vigorous annual climber to 2.3m, with strongly fragrant cream flowers, all the petals heavily flushed with clear light pink
M. racemosum is an herbaceous perennial to 75cm, the arching stems with broad-elliptic leaves and fluffy terminal panicles of fragrant creamy-white flowers, sometimes followed by reddish berries. Yellow autumn colour
A. victoriae-reginae is an evergreen perennial forming a rosette of thick, straight, mid-green, spine-tipped leaves to 30cm in length, with creamy-white flowers borne in narrow, erect or arching racemes to 4m in length
'Red Gables' is a vigorous, deciduous, twining climber, to 7m tall, with oval, dark-green, bronze-flushed leaves, grey-green beneath. Clusters of fragrant, deep reddish-purple flowers, with cream interiors, are borne from summer into autumn and followed by red berries
'Variegata' is a medium-sized single-stemmed evergreen shrub with stiff, spine-tipped leaves striped and edged creamy-yellow. Bell-shaped cream flowers in broad panicles to 2m in height appear in late summer and autumn
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