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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.
Crown Princess Margareta has arching stems that can be left to produce a 1.5m high shrub, or trained as a 3.5m high climbing rose. The flowers, produced in summer and autumn, are fragrant, fully-petalled rosettes in apricot-orange
'Cocktail Tropical' is a rhizomatous, clump-forming perennial to 90cm tall with sword-shaped, grey-green foliage. Eight to ten blooms per stem are borne in summer each with light apricot-coloured standards, an orange beard and purple-violet falls held nearly horizontal
E. californica is a vigorous bushy, spreading annual to 30cm, with finely divided blue-green leaves and orange, yellow or red flowers to 7cm across in summer
'Safranvogel' is a reasonably small cultivar with low, arching foliage; height to 80cm, spread to 90cm. The elliptic to diamond-shaped flower heads are held well above the leaves, and have a delicate colouring of soft peach-pink, getting paler from bud to flower as they open
'Galaxy' is a spray chrysanthemum to 1.5m, the single flowers with deep orange rays, tinged bronze, and greenish-yellow disks
'Nessa' is a Jonquilla daffodil producing 1-3, strongly scented flowers on each stem in mid-spring. Each 6cm flower comprises yellow, overlapping outer petals surrounding a deeply-ribbed and lightly-frilled, bowl-shaped, orange corona
'Aurora' is a deciduous, aquatic perennial, spreading to 1.5m across, with purple-mottled green leaves. The 5cm wide, orange-centred, star-shaped flowers open yellow and deepen in colour from orange to red with age
'Bressingham Comet' is a clump-forming perennial to 60cm tall with narrow, arching leaves. Spikes of red-tipped apricot-yellow flowers open from red buds in summer and autumn
'Spinfield Happiness' is a vigorous perennial with unscented, double, pale orange-yellow flowers 6cm across, the petals becoming streaked with deep rose towards the margins
'Aurea' is a spreading medium-sized deciduous tree with large ovate golden-yellow leaves becoming light yellow-green in summer. Flowers white, marked orange and purple, in conical panicles
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