Slender evergreens
Skinny conifers with coloured needles-and green ones, too-add interest to the garden all year.
| NAME | HEIGHT/ SPREAD | SPECIAL ATTRIBUTES | ZONE |
| Lawson false cypress (Chamaecyparis lawsoniana cvs.) | 5 x 1 to 18 x 5 | Many forms; grows as narrow green-, gold- or silver-coloured column | 5 |
| ‘Fairview' Chinese juniper (Juniperus chinensis ‘Fairview') | 5 x 2 | Strong growing; dense, narrow, blue-green column | 4 |
| ‘Pencil Point' common juniper (J. communis ‘Pencil Point' a.k.a. ‘Sentinel') | 10 x 1.5 | Extra-slender; dense, bright green needles | 3 |
| ‘Skyrocket' Rocky Mountain juniper (J. scopulorum ‘Skyrocket') | 6 x 1.2 | Silver-grey needles; stays more slender on poor, dryish soils | 3 |
| ‘Blue Arrow' Rocky Mountain juniper (J. s. ‘Blue Arrow') | 4 x 1 | Steel-blue needles; denser form than ‘Skyrocket' | 3 |
| Serbian spruce (Picea omorika) | 20 x 3 | Retains branches down to ground; pollution-tolerant | 3b |
| ‘Elegantissima' white cedar (Thuja occidentalis ‘Elegantissima') | 5 x 1.5 | New growth tipped yellow, then turns green | 3 |
| ‘Fastigiata' white cedar (T. o. ‘Fastigiata') | 5 x 1.5 | Short, green sprays of foliage turn brownish in winter | 3 |
| ‘Unicorn' white cedar (T. o. ‘Unicorn') | 4 x 1 | Very small variety; dense, dark green; Canadian introduction | 3 |
| ‘Yellow Ribbon' white cedar (T. o. ‘Yellow Ribbon' ) | 3 x 1 | Keeps bright yellow colour throughout year | 3 |
Narrow green columns
There are times when you need a slender tree purely for its shape, not for the flower or foliage effect. The following will fit the bill.
| NAME | HEIGHT/ SPREAD | SPECIAL ATTRIBUTES | ZONE |
| Upright English oak (Quercus robur forma fastigiata) | 15 x 5 | Dark green foliage; very slow growing | 5 |
| Pyramidal American linden (Tilia americana ‘Fastigiata') | 25 x 8 | Withstands harsh winters (original plant found in Rochester, New York) | 2b |
| ‘Greenspire' littleleaf linden (T. cordata ‘Greenspire') | 15 x 7 | Small, leathery leaves; straight trunk; fast growing; susceptible to winter sunscald | 3 |
Trees with coloured foliage
Used in moderation, coloured foliage can be an effective garden accent. These trees will provide it.
| NAME | HEIGHT/ SPREAD | SPECIAL ATTRIBUTES | ZONE |
| ‘Crimson Sentry' Norway maple (Acer platanoides ‘Crimson Sentry') | 12 x 5 | Dense, dark red foliage throughout season; slow growing | 4b |
| ‘Dawyck' European beech (Fagus sylvatica ‘Dawyck') | 25 x 7 | Green foliage; brown in fall; persists all winter | 5b |
| ‘Dawyck Gold' European beech (F. s. ‘Dawyck Gold') | 18 x 7 | Yellow foliage; brown in fall; persists all winter | 5b |
| ‘Purple Fountain' European beech (F. s. ‘Purple Fountain') | 18 x 7 | Purple foliage; brown in fall; persists all winter | 5b |
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