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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.
'Grand Prix' is a vigorous upright medium-sized shrub with bright red, semi-double flowers to 13cm across
'Elegans' is a vigorous medium-sized shrub of spreading habit, with deep pink, anemone-centred double flowers to 10cm in width
'Alba Plena' is an upright evergreen shrub with rather light green foliage and medium-sized, white, formal double flowers in spring
'Carter's Sunburst' is a medium-sized to large shrub with blush-pink flowers to 12cm in width, striped deeper pink and varying from semi-double to formal double
'Apple Blossom' is a compact medium-sized shrub with semi-double, blush-pink flowers to 10cm in width in early and mid spring
'Berenice Boddy' is a strong-growing large shrub of upright growth with semi-double, pale pink flowers to 10cm in width, deeper on reverse, borne in late winter and spring
'Masayoshi' is a compact medium-sized shrub with semi-double red flowers to 12cm in width, often with some white spots and marbling and with prominent stamens
'Rose Parade' is an evergreen shrub with a compact, upright habit and rose-pink, formal double spring flowers, 8-10cm in diameter
'Joseph Pfingstl' is an evergreen shrub of open habit, with glossy leaves and semi-double or peony-form deep red flowers
'Silver Anniversary' is an upright, evergreen shrub to around 2.5m with glossy, dark green leaves and large, white, peony-form flowers with irregular petals interspersed with golden stamens, produced from mid- winter to early spring
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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.