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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
'Southern Charm' is a clump-forming, upright, sometimes short-lived perennial to 1.2m high, its greyish-green, hairy leaves forming a basal rosette. Long spikes of flowers in pastel shades ranging from cream, pale pink, apricot and lavender with purple stamens are borne in summer
'Ms Mars Improved' is a compact, branching annual to 60cm tall with purple-flushed, oval to heart-shaped leaves. Flowers up to 15cm across borne from summer into early autumn have very dark centres surrounded by deep pink-red petals the outer tips of which are cream coloured
'Dalmation Cream' is a biennial or short-lived perennial to 60cm tall with a basal rosette of toothed, dark green leaves. Upright spikes of cream flowers with purple-spotted throats are borne in early summer; this cultivar typically flowers in its first year
L. ligustrina var. yunnanensis is a dense, evergreen shrub, growing to 3.5m tall and 3m wide, with small, ovate, glossy dark-green leaves on arching branches. Tiny cream flowers in spring are followed, in autumn, by sparse, glossy, blue-purple berries
'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
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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.