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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
While we update our systems with the new hardiness ratings you may still see old
hardiness ratings in your search results. These are denoted as 'Old'.
For full details of the hardiness ratings see
AGM plants have been through a rigourous trial and assessment programme. They are:
'Little Spire' is a slow-growing evergreen conifer of conical habit, with dark blue-green foliage in small, dense, thick sprays
'Kilmacurragh' is an evergreen conifer of narrowly columnar growth, making a medium-sized tree. Foliage dense, dark green, on short, ascending branches
'Lanei Aurea' is a columnar evergreen conifer forming a medium-sized tree. Foliage bright golden-yellow, in lax open sprays, retaining its colour well through year
'Pelt's Blue' is an evergreen conifer making a narrowly conical medium-sized tree. Foliage at first blue-grey, later dark blue-green
'Ellwood's Gold' is a slow-growing, columnar, evergreen conifer making a large shrub of compact habit. Young foliage yellow at the tips, grey-green within the bush
'Intertexta' is a large evergreen conifer forming a large tree of irregular, billowy conical habit. Foliage grey-green, in large open sprays on drooping branchlets
'Tamariscifolia' is a low-growing, bushy, evergreen conifer with arching branches bearing dark green foliage in flat sprays
'Lutea' is a broadly columnar evergreen conifer making a medium-sized tree with drooping sprays of golden-yellow foliage
'Gimbornii' is an evergreen conifer forming a medium-sized dense globose shrub. Foliage blue-green, tinged purple in winter, in short sprays
'Erecta Viridis' is a columnar tree to 20m, with erect branches bearing flat, upright sprays of rich green foliage
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