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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.
Bressingham hybrids is an upright perennial to 90cm tall with dark green, toothed, hairy leaves. Daisy-like flowerheads with bronze-orange central cones surrounded by ray florets ranging in colour from pale pink to red-purple are borne from summer into autumn
'Pink Shimmer' is an upright, clump-forming perennial to 90cm tall with roughly-hairy foliage and blooms up to 12cm across comprising a prominent yellow-orange cone surrounded by rose-pink ray florets
'Catharina Red' is a clump-forming perennial to 60cm tall with dark green hairy leaves. Double flowers with pink ray florets held beneath reddish-purple, pompom-like cones are borne from summer into autumn
'White Meditation' is a compact, clump-forming perennial to around 60cm tall with ovate, roughly hairy leaves and flowerheads of white ray florets surrounding orange-yellow cones borne on sturdy stems from summer into autumn
'Now Cheesier' is an upright, clump-forming perennial to 80cm tall with toothed, hairy leaves. Flowerheads comprising deep golden-yellow ray florets surrounding a large greenish-orange cone are borne on branching stems from summer into autumn; the colour may lighten as the flower ages
'Butterfly Kisses' is an upright, compact, clump-forming perennial to 50cm tall with toothed, dark green leaves. Fragrant, double flowers to 7.5cm in diameter are borne on sturdy, branched stems from summer into autumn and comprise a dark pink, pompom-like central cone surrounded by pale pink ray florets
Powwow White is an upright, clump-forming perennial, to 60cm tall, with hairy, toothed leaves. Flowers, borne from summer into autumn, reach up to 10cm in diameter and comprise pure white, downward-arching ray florets surrounding a yellow-brown cone
'Amazing Dream' produces eye-catching flowers comprising hot pink petals that surround a broad orange eye. This herbaceous perennial will reach about 60cm in height and 45cm spread
'Hot Summer' is an upright perennial to 90cm with branched stems supporting rough, hairy leaves. The scented, solitary flower-heads, produced from early summer to early autumn have an orange-brown cone surrounded by petals that open golden-yellow, mature through shades of orange to red, then fade to pink
'Tomato Soup' is a strikingly-coloured cultivar. Large, bright red flowers that fade to orange are borne from June to September. Reaches approximately 80cm in height
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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.