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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.
'Galaxy' is a spray chrysanthemum to 1.5m, the single flowers with deep orange rays, tinged bronze, and greenish-yellow disks
'Ruby Raynor' is a free-flowering, bushy herbaceous perennial with reflexed, double, yellow-bronze flowers darkening towards the centre, produced in late summer and early autumn
'Zwanenburg Bronze' is a perennial corm flowering with the leaves. Flowers fragrant, rich deep yellow, heavily marked outside with dark bronze
'Yellow Hammer' grows to 85cm in height, with bronze foliage and single, light yellow flowerheads streaked with bronze towards the base of each floret
'Apricot Margaret' is a half-hardy perennial to 1.1m in height, with divided foliage and flowers 8.5cm in width with reflexed, pale bronze-pink florets, creamy-yellow on reverse
'Flava' is a dwarf bulbous perennial, to 30cm tall, with lance-shaped grey-green leaves. Flowers are multi-flowering, bronze-yellow with orange flares, and appear in mid spring
'Karl Foerster' is a clump-forming deciduous perennial grass with flat, arching leaves to 90cm in length, and bronze flowering panicles that fade to pale brown
'Pennine Jade' is a half-hardy perennial to 1.2m in height, with divided foliage and single flowers 8cm across, with yellow disk and light bronze ray florets
'Sunningdale' has deep-pink flowers with redder centres held over erect leaves in a range of surface colours, with striking red reverses
'Hamilton Lillian' grows to 1.2m in height, with divided leaves and pink-tinged, bronze flowers 13cm across
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