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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.
'Exmouth' is a large evergreen shrub or tree with glossy oblong leaves to 25cm in length, brown-felted beneath. Flowers to 25cm in width, bowl-shaped, cream and heavily scented. Flowers when young
M. grandiflora is a large, rounded evergreen shrub or tree with glossy dark green, leathery, oblong-elliptic leaves, often rusty-brown beneath, and highly fragrant, cup-shaped, cream flowers to 25cm across in late summer and autumn
'Goliath' is a rounded evergreen tree or large shrub to 15m tall, with glossy, leathery dark green leaves to 25cm long, and highly fragrant, cup-shaped, cream flowers to 30cm wide in late summer and autumn
S. rubriflora is a climbing, deciduous shrub, twining to 8m. Leaves are lanceolate, smooth and rather leathery, mid-green, sometimes with reddish new shoots. Flowers are unisexual, but usually borne on one plant, so often fertile. They are borne singly in the leaf axils of new shoots, and are cup-shaped, to 3cm across, deep crimson, on pendulous red stalks to 4cm long, in June. The closely-set, pea-sized, bright red berries are borne on dangling spikes to 12.5cm
S. grandiflora is a twining, deciduous climber. Flowers are typically white and with male and female flowers being borne on separate plants, in late spring and into summer, both sexes are required to produce the hanging red fruit in autumn
'Kay Parris' is a robust, compact, free-branching evergreen shrub or small tree with glossy deep green, wavy-edged leathery, oblong-elliptic leaves, a rich rusty-brown beneath. Plentiful, highly fragrant, large cup-shaped creamy-white flowers are produced from summer to autumn
Listed in the RHS Plant Finder
This plant is listed in the RHS Plant Finder book. At present our information about this plant is limited to a list of the nurseries that supply it. In time we will be adding more details including a description, growing information, advice and photographs.
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Britain’s best gardening annual, available now from RHS Mail Order and all good bookshops.
Last-listed in the RHS Plant Finder in 2016
Last-listed in the RHS Plant Finder in 2006
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