Kashmir Cypress 'Kashmir' Deodar Cedar
Kawaka 'Kelleriis Viridis' American Arborvitae
'Keown' Monterey Cypress 'Keteleeri' Eastern Red Cedar
Korean Arborvitae Korean Fir (spp.)
Korean Fir 'Compact Dwarf' Korean Fir 'Prostrate Beauty'
Korean Fir 'Silberlocke' Korean Pine (spp.)
Korean Pine 'Morris Blue' 'Koster' Colorado Spruce
'Kosteri' Eastern Red Cedar 'Kosteri' Hinoki False Cypress
Lacebark Pine 'Lanark' Common Larch
'Lane' Lawson's Cypress 'Lane's Aurea' Lawson's Cypress
Larch 'Vaired Direction' Larch, American
Larch, Common (spp.) Larch, Common 'Julian's Weeper'
Larch, Common 'Lanark' Larch, Common Weeping
Larch, European (spp.) Larch, European 'Julian's Weeper'
Larch, European 'Lanark' Larch, European Weeping
Larch, Golden Larch, Japanese
Lawson's Cypress (spp.) Lawson's Cypress 'Aurea Densa'
Lawson's Cypress 'Columnaris' Lawson's Cypress 'Erecta'
Lawson's Cypress 'Fletcheri' Lawson's Cypress 'Globosa Nana'
Lawson's Cypress Golden Lawson's Cypress Golden
Lawson's Cypress 'Green Pillar' Lawson's Cypress 'Intertexta'
Lawson's Cypress 'Lane' Lawson's Cypress 'Lane's Aurea'
Lawson's Cypress 'Minima Aurea' Lawson's Cypress 'Pembury Blue'
Lawson's Cypress 'Pottenii' Lawson's Cypress 'Triomf van Boskoop'
Lawson's Cypress 'Wisselii' Lawson's Cypress 'Yvonne'
'Laxa' Common Juniper 'Lewisii' Canadian Hemlock
Leyland Cypress (spp.) Leyland Cypress 'Golconda'
Leyland Cypress 'Haggerston Gray' 'Likelight' Deodar Cedar
Limber Pine (spp.) Limber Pine Blue
'Little Elfie' American Arborvitae 'Little Gem' American Arborvitae
'Little Gem' Norway Spruce 'Little Giant' American Arborvitae
'Livida' Creeping Juniper Loblolly Pine (spp.)
Loblolly Pine Dwarf Lodgepole Pine
Lodgepole Pine: contorta latifolia Long Leafed Yellowwood Podocarpus
Longleaf Pine Long-leaved Indian Pine
'Lonica' American Arborvitae Lowland White Fir
'Lowry' Nordmann Fir Luiang Spruce
'Lutea' American Arborvitae 'Lutea' Monterey Cypress
'Lutea Zebrina' American Arborvitae Macedonian Pine
'Macopin' Eastern White Pine Macquarie Pine
'Macrophylla' Canadian Hemlock Maidenhair Tree (spp.)
Maidenhair Tree 'Autumn Gold' Maidenhair Tree 'Fastigiata'
Maidenhair Tree 'Golden Globe' Maidenhair Tree 'Saratoga'
'Mais Golden' Chinese Juniper 'Maki' Southern Yew
Manchurian Fir 'Maney' Chinese Juniper
'Manhattan Blue' Eastern Red Cedar Manio
'Mariesii' Hinoki False Cypress 'Marshall' Douglas Fir
'Massena' American Arborvitae 'Maxwellii' Norway Spruce
'Mcfetter' Alligator Juniper 'Medora' Colorado Red Cedar
Mendocino Shore Pine