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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.
'Obelisk' is an evergreen conifer making a small tree of dense, irregularly columnar habit. Foliage dark blue-green, juvenile, with needle-leaves to 15mm in length
'Aurea' is a fairly slow-growing, small evergreen tree of narrowly conical habit. Foliage golden-yellow, mostly adult scale-leaves with some juvenile needle leaves. Male cones small, yellow, often abundant
'Plumosa Aurea' is a bushy evergreen medium-sized shrub with strongly ascending main branches. Leaves mostly scale-like, greenish-yellow, becoming bronze-yellow in winter
'Blaauw' is a vigorous evergreen conifer making an erect medium-sized shrub with strongly ascending main branches. Foliage mainly scale-like, blue-grey, in large plume-like sprays
J. chinensis is a variable conifer species forming either a tall, conical or columnar tree to 18m in height or a spreading shrub. Two types of aromatic leaves are usually found on the same tree; juvenile, awl-shaped leaves that are sharply and stiffly pointed and arranged either in threes or pairs and scale-like adult leaves, usually in pairs and closely flattened to the branchlet. Rounded fruits, 5-7mm across, ripen in their second year to a glaucous white
'Blue Alps' is a large coniferous shrub to 4m tall. Prickly, blue-green needle-like leaves, with a silvery-sheen, are held on slightly arching branches
'Sulphur Spray' is a bushy, evergreen conifer making a medium-sized shrub to 2m, with strongly ascending main branches. Foliage mostly scale-like, pale yellow
'Pyramidalis' is a slow-growing, dwarf columnar evergreen shrub, with mostly prickly, grey-green juvenile needles
'Grey Owl' is a vigorous evergreen conifer making a medium-sized shrub of irregular, spreading bushy habit, to 4m in width, with arching main branches bearing bright blue-grey, scale-like foliage and purplish fruits
'Kaizuka' is an evergreen conifer forming a large shrub of upright habit and irregular outline, with mostly scale-like, bright green foliage, in dense clusters, and tiny yellow flowers followed by small green cones
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