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7/29/2019 Tree BuyersGuide
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a buyers guide
Trees or Conservation
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ii
Many thanks to Dennis Will, Dan Wand, Greg Morgenson, Vince
Urbina, Randy Moench and Mike Way or the ne photographs in
this publication.
This publication was developed by the Colorado State Forest Service,
Colorado State University, Fort Collins, CO 80523-5060.CSFS #115-1196
The Colorado State Forest Service tree program enables armers, ranchers and rural landowners to obtain trees at nominal cost.
The programs aim is to encourage landowners to plant new orests; establish eective windbreaks to reduce erosion, protect
homes, cropland, livestock and highways; and enhance wildlie habitat. Our trees and shrubs are grown or their conservation
benets only. Ornamental qualities such as color, degree o fowering, ruit production and others are not guaranteed.
To participate, landowners must have at least two acres o land and must agree not to use the trees or ornamental or landscaping
purposes. These trees and shrubs cannot be resold as living plants (the roots must be severed). Contact your local nursery or
ornamental needs.
For inormation on ordering trees and application orms, contact your local soil conservation district, your local Extension
county oce, your district Colorado State Forest Service oce (page vi), or the Colorado State Forest Service nursery.
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Trees or Conservationa buyers guide
a catalog o conservation tree and shrub species grown
at the Colorado State Forest Service Nursery
Revised October 2008
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iv
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Contents
Colorado State Forest Service Oces ......................................vi
Caragana ..................................................................................... 1
Cotoneaster ................................................................................1
Chokecherry ...............................................................................2
Lilac .............................................................................................2
Native plum ................................................................................3Sumac (skunkbush) ...................................................................3
Sand cherry.................................................................................4
Nanking cherry .......................................................................... 4
European sage.............................................................................5
Wild rose ..................................................................................... 5
Bualoberry ...............................................................................6
Four-wing saltbush ....................................................................6
Golden currant ...........................................................................7
Serviceberry ................................................................................7
Mountain mahogany .................................................................8Red-osier dogwood ....................................................................8
New Mexico orestiera (privet) .................................................9
Snowberry ..................................................................................9
Wax currant ..............................................................................10
Green ash ..................................................................................10
Siberian elm ..............................................................................11
Hybrid cottonwood ..................................................................11
Native willow mix ....................................................................12
Golden willow .......................................................................... 12
Hackberry .................................................................................13
Honeylocust .............................................................................13
Lombardy poplar .....................................................................14
Bur oak ..................................................................................... 14
Coyote willow ...........................................................................15
Peachlea willow ....................................................................... 15
Prairie sky poplar .....................................................................16Gambel oak ..............................................................................16
Lancelea cottonwood ..............................................................17
Aspen ........................................................................................ 17
Austrian pine ............................................................................18
Colorado blue spruce ............................................................... 18
Douglas-r ...............................................................................19
Engelmann spruce ...................................................................19
Eastern redcedar .......................................................................20
Lodgepole pine ......................................................................... 20
Pinon pine ................................................................................21Ponderosa pine ......................................................................... 21
Rocky Mountain juniper ......................................................... 22
Scotch pine ...............................................................................22
White r .................................................................................... 23
Bristlecone pine ........................................................................ 23
Narrowlea cottonwood ........................................................... 24
Freemont cottonwood .............................................................24
Limber pine ..............................................................................25
Subalpine r .............................................................................25
v
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vi
Colorado State Forest ServiceJeff J. Jahnke, State Forester
Colorado State University
Fort Collins, Colorado 80523-5060
(970) 491-6303
Alamosa District
Colorado State Forest ServiceP. O. Box 1137129A Santa FeAlamosa, CO 81101-1137(719) 587-0915
Boulder DistrictColorado State Forest Service5625 Ute HighwayLongmont, CO 80503-9130(303) 823-5774
Canon City DistrictColorado State Forest Service515 McDaniel Blvd., Industrial ParkCanon City, CO 81212-4164(719) 275-6865
Durango DistrictColorado State Forest ServiceP. O. Box 7233Fort Lewis College CampusDurango, CO 81301-3908(970) 247-5250
Fort Collins DistrictColorado State Forest ServiceBuilding #1052, Foothills CampusColorado State UniversityFort Collins, CO 80523-5060(970) 491-8660
Fort Morgan DistrictColorado State Forest ServiceP.O. Box 368801 East Burlington
Fort Morgan, CO 80701-3638(970) 867-5610
Franktown District
Colorado State Forest Service2068 North State Highway 83P. O. Box 485Franktown, CO 80116-0485(303) 660-9625
Golden DistrictColorado State Forest Service1504 Quaker StreetGolden, CO 80401-2956(303) 279-9757
Granby DistrictColorado State Forest ServiceP. O. Box 69201 E JasperGranby, CO 80446-0069(970) 887-3121
Grand Junction DistrictColorado State Forest ServiceState Services Building222 South 6th Street, Room 416Grand Junction, CO 81501-2771
(970) 248-7325
Gunnison DistrictColorado State Forest ServiceP. O. Box 1390Gunnison, CO 81230-1390(970) 641-6852
La Junta DistrictColorado State Forest Service208 Santa Fe Avenue, Suite 21La Junta, CO 81050-0977
(719) 384-9087
La Veta District
Colorado State Forest ServiceP. O. Box 81Moore & Poplar StreetsLa Veta, CO 81055-0081(719) 742-3588
Montrose DistrictColorado State Forest Service102 Par Place, Suite 1Montrose, CO 81401-4196(970) 249-9051
Salida DistrictColorado State Forest Service7980 West Highway 50Salida, CO 81201-9571(719) 539-2579
Steamboat Springs DistrictColorado State Forest ServiceP. O. Box 7736571475 Pine Grove Road, Suite 201ASteamboat Springs, CO 80477-3657(970) 879-0475
Woodland Park DistrictColorado State Forest ServiceP. O. Box 9024113 South BoundaryWoodland Park, CO 80866-9024(719) 687-2921
CSFS NurseryColorado State Forest ServiceBuilding 1060, Foothills CampusColorado State University
Fort Collins, CO 80523-5060(970) 491-8429
10/08
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1
CaraganaCaragana arborescens
CotoneasterCotoneaster acutiolia
Growth Form: irregular or hedgelike
Crown Density: dense
Size: 8-12 eet high
5-8 oot spread
Drought Resistance: excellent
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 9,500 eet
Soil Conditions: good salt and alkaline tolerancePossible Insect Problems: aphids and grasshoppers
Possible Disease Problems: very resistant
Wildlie Value: good: songbirds
Seasonal Color: yellow spring fowers
Miscellany: does well in poor soils
Growth Form: ovoid to irregular
Crown Density: dense
Size: 6-8 eet high
3-5 oot spread
Drought Resistance: very good
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 9,500 eet
Soil Conditions: good alkaline tolerance
Possible Insect Problems: oyster shell scale
Possible Disease Problems: reblight; airly resistant
Wildlie Value: high: song and game birds
Seasonal Color: brilliant red-orange oliage
Miscellany: can be clipped to a hedge
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ChokecherryPrunus virginiana
Growth Form: ovoid to irregular
Crown Density: moderate
Size: 6-20 eet high
6-20 oot spread
Drought Resistance: good
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 9,000 eet
Soil Conditions: good alkaline tolerance
Possible Insect Problems: borers, pear-slug sawfy
Possible Disease Problems: black knot, reblightWildlie Value: high: song and ground birds; good: small
mammals, and browse or deer
Seasonal Color: golden yellow to orange all oliage
Miscellany: delicious edible ruit or jellies and pies; native;
can be poisonous to livestock
LilacSyringa spp.
Growth Form: round to irregular
Crown Density: dense
Size: 8-12 eet high
8-12 oot spread
Drought Resistance: very good
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 8,000 eet
Soil Conditions: good alkaline tolerance
Possible Insect Problems: lilac borer, lea miners, oyster
shell scale
Possible Disease Problems: lilac lea blotch, powdery
mildew, some lea spots
Wildlie Value: moderately high: songbirds; cover value
Seasonal Color: ragrant purple or white spring fowers
Miscellany: develops into a dense barrier
var. villosa lilac
common lilac
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Native plumPrunus americana
Growth Form: irregular
Crown Density: open
Size: to 8 eet high
to 8 oot spread
Drought Resistance: good
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 8,000 eet
Soil Conditions: good alkaline tolerance
Possible Insect Problems: pear-slug sawfy
Possible Disease Problems: reblight, powdery mildewWildlie Value: excellent: hooed browsers; nesting cover and
ood value
Seasonal Color: large white fowers in May
Miscellany: native; delicious edible ruit or jellies and
canning; orms a thicket
Sumac (skunkbush)Rhus trilobata
Growth Form: irregular
Crown Density: dense
Size: to 4 eet high
to 8 oot spread
Drought Resistance: excellent
Cold Hardiness: excellent
Growth Rate: rapid to moderate
Lie Span: moderate
Elevational Range: to 8,000 eet
Soil Conditions: excellent alkaline tolerance
Possible Insect Problems: airly resistant
Possible Disease Problems: Fusarium wilt
Wildlie Value: excellent: many birds
Seasonal Color: red-orange all oliage
Miscellany: native; berries have slight lemon taste when
rolled under tongue
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Sand cherryPrunus besseyi
Growth Form: spreading
Crown Density: moderate
Size: 3 eet high
4 oot spread
Drought Resistance: good
Cold Hardiness: good
Growth Rate: rapid
Lie Span: short
Elevational Range: to 7,500 eet
Soil Conditions: best on sandy to loamy soilsPossible Insect Problems: pear slug; all web worm
Possible Disease Problems: powdery mildew
Wildlie Value: excellent: browse and ood value
Seasonal Color: pink fowers
Miscellany: native; edible ruit
Nanking cherryPrunus tomentosa
Growth Form: round to irregular
Crown Density: moderate
Size: to 8 eet high
to 8 oot spread
Drought Resistance: good
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 8,000 eet
Soil Conditions: good alkaline tolerance
Possible Insect Problems: tent caterpillars, bark beetles
Possible Disease Problems: shot-hole lea spot, black knot
Wildlie Value: high: song and game birds
Seasonal Color: white fowers in spring
Miscellany: delicious edible ruit or jellies; blooms early
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European sageArtemesia abrotanum
Growth Form: round to irregular
Crown Density: open
Size: to 8 eet high
to 8 oot spread
Drought Resistance: very good
Cold Hardiness: good
Growth Rate: rapid
Lie Span: moderateElevational Range: to 6,000 eet
Soil Conditions: good alkaline tolerance
Possible Insect Problems: airly resistant
Possible Disease Problems: airly resistant
Wildlie Value: air; cover and browse value
Wild roseRosa spp.
Growth Form: irregular
Crown Density: open
Size: 4 eet high, spreading
Drought Resistance: good
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 10,000 eet
Soil Conditions: moist
Possible Insect Problems: lea cutter bees
Wildlie Value: excellent: big game browse and ood value;
relished by grouse, turkey and pheasant
Seasonal Color: not conspicuous
Miscellany: native; showy fowers; suckers and spreads
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BualoberryShepherdia argentea
Growth Form: round to irregular
Crown Density: dense
Size: 10 eet high; spreading
Drought Resistance: good
Cold Hardiness: excellent
Growth Rate: moderate
Lie Span: long
Elevational Range: to 7,500 eet
Soil Conditions: tolerates alkaline
Possible Insect Problems: unimportantPossible Disease Problems: unimportant
Wildlie Value: good: ood value; excellent: cover or small
game and songbird nesting
Seasonal Color: not conspicuous
Miscellany: native; edible ruit or jellies; orms thickets
Four-wing saltbushAtriplex canascens
Growth Form: round to irregular
Crown Density: moderate
Size: 3 eet high
5 oot spread
Drought Resistance: excellent
Cold Hardiness: good
Growth Rate: moderate
Lie Span: long
Elevational Range: to 8,500 eet
Soil Conditions: excellent alkali and salt tolerance
Possible Insect Problems: grasshoppers
Wildlie Value: good: orage value
Seasonal Color: mature seed makes ne contrast
Miscellany: native
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Golden currantRibes aureum
Growth Form: round to irregular
Crown Density: moderate
Size: 7 eet high
3 oot spread
Drought Resistance: good
Cold Hardiness: good
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 8,000 eet
Soil Conditions: moist
Possible Insect Problems: imported currant worm, oyster
shell scalePossible Disease Problems: blister rust
Wildlie Value: good: ood and browse value; nesting cover
Seasonal Color: red to orange all color; showy yellow fowers
Miscellany: native; edible ruit
ServiceberryAmelanchier spp.
Growth Form: ovoid to irregular
Crown Density: moderate
Size: 6 eet high
5 oot spread
Drought Resistance: air
Cold Hardiness: excellent
Growth Rate: moderate
Lie Span: long
Elevational Range: to 9,000 eet
Soil Conditions: moist
Possible Insect Problems: pear slug
Possible Disease Problems: lea spots and rust
Wildlie Value: excellent: big game browse; ood value or
upland game
Seasonal Color: showy white fowers
Miscellany: native; edible ruit; showy fowers
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Mountain mahoganyCercocarpus montanus
Growth Form: irregular
Crown Density: dense
Size: 6 eet high
5 oot spread
Drought Resistance: excellent
Cold Hardiness: good
Growth Rate: moderate
Lie Span: moderate
Elevational Range: to 9,000 eet
Soil Conditions: tolerates alkaline; well-drained
Possible Insect Problems: tent caterpillarsPossible Disease Problems: unimportant
Wildlie Value: high: big game browse; cover or small game
birds and mammals
Seasonal Color: not conspicuous
Miscellany: native; seed showy in all
Red-osier dogwoodCornus serica
Growth Form: irregular
Crown Density: open
Size: to 8 eet high
to 6 oot spread
Drought Resistance: air
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 11,000 eetSoil Conditions: not suited or dense clays
Possible Insect Problems: dogwood sawfy, polyphemus
moth, oystershell scale
Possible Disease Problems: cytospora canker
Wildlie Value: excellent: grouse, pheasant, turkey, grosbeak,
robin, cedar waxwing
Seasonal Color: vivid red all oliage and stems. Showy white
fowers and berries
Miscellany: or moist sites such as streamside riparian areas
Dogwood close-up courtesy Natural Resources Conservation Service
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New Mexico orestiera (privet)Forestiera neomexicana
Growth Form: irregular
Crown Density: dense
Size: 10 eet high
Drought Resistance: excellent
Cold Hardiness: good
Growth Rate: moderate
Lie Span: long
Elevational Range: to 7,500 eet
Soil Conditions: moist; alkaline tolerance
Possible Insect Problems: unimportantPossible Disease Problems: unimportant
Wildlie Value: good; ruit valuable to quail, songbirds;
excellent: cover
Seasonal Color: not conspicuous
Miscellany: native; bluish-black ruit; yellow fowers
SnowberrySymphoricarpos spp.
Growth Form: irregular
Crown Density: open
Size: 3 eet high
Drought Resistance: air
Cold Hardiness: excellent
Growth Rate: moderate
Lie Span: moderate
Elevational Range: to 9,500 eet
Soil Conditions: good alkaline tolerance
Possible Insect Problems: aphids
Possible Disease Problems: lea spot, anthracnose, rust,
powdery mildew
Wildlie Value: good: ood and cover or turkey, grouse, and
other small game
Seasonal Color: white ruit
Miscellany: native
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Green ashFraxinus pennsylvanica
Growth Form: irregular to elliptical
Crown Density: moderate
Size: 35-75 eet high
15-35 oot spread
Drought Resistance: excellent
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: long
Elevational Range: to 6,000 eet
Soil Conditions: good alkaline tolerance
Possible Insect Problems: ash borer, oyster shell scale, ash
sawfy
Possible Disease Problems: occasional powdery mildew
Wildlie Value: air: game and songbirds
Seasonal Color: golden-yellow all oliage
Miscellany: native; does best in sandy, loam soils
Wax CurrantRibes cereum
Growth Form: irregular
Crown Density: moderate
Size: 3 eet high
3-5 oot spread
Drought Resistance: very good
Cold Hardiness: very good
Growth Rate: rapid
Lie Span: moderate
Elevational Range: 4000-11000 eet
Soil Conditions: coarse and medium textured soils
Possible Insect Problems:Possible Disease Problems: alternate host or white pine
blister rust
Wildlie Value: high
Seasonal Color: attractive red ruit
Miscellany: native, edible ruit
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Siberian elmUlmus pumila
Growth Form: irregular
Crown Density: moderate
Size: to 40 eet high
30-40 oot spread
Drought Resistance: excellent
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 8,000 eet
Soil Conditions: tolerates alkaline well
Possible Insect Problems: elm lea beetlePossible Disease Problems: bacterial wetwood
Wildlie Value: moderate: song and game birds (seeds
and buds)
Seasonal Color: not conspicuous
Miscellany: hardiest o all elms; can be weedy
Growth Form: globular to irregular
Crown Density: moderate
Size: 75-100 eet high
50-75 oot spread
Drought Resistance: poor
Cold Hardiness: excellentGrowth Rate: rapid
Lie Span: moderate
Elevational Range: to 6,500 eet
Possible Insect Problems: lea miners, all webworm, poplar
borers, oyster shell scale
Possible Disease Problems: cytospora canker; bacterial
wetwood, Marssonina lea blight
Wildlie Value: air: nesting and roosting cover
Miscellany: Norway male clone, will produce male fowers.
No guarantee on degree o cotton production
Hybrid cottonwood (poplar)Populus spp.
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Growth Form: globular to spreading
Crown Density: moderate
Size: to 35 eet high
to 35 oot spread
Drought Resistance: poor
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 8,000 eet
Soil Conditions: tolerates alkaline and salts well
Possible Insect Problems: aphids
Possible Disease Problems: cytospora canker; bacterial
wetwood
Wildlie Value: moderate: song and game birds; ood value
or buds and twigs
Seasonal Color: orange-yellow bark on young growth
in winter
Miscellany: requires moist soil
Golden willowSalix alba vitellina
Native willow mixSalix spp.
Growth Form: irregularCrown Density: dense
Size: to 12 eet high; spreading
Drought Resistance: poor
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational range: to 9,500 eet
Soil Conditions: moist
Possible Insect Problems: willow and poplar borers;
sawfy galls
Possible Disease Problems: lea rust
Wildlie Value: high: ood and cover or birds, browse valueor deer, elk and moose
Seasonal Color: not conspicuous
Miscellany: a mix o whiplash (Pacic), straplea, and coyote
willows, native, suckers and spreads, species mix may
vary rom year to year
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HoneylocustGleditsia triacanthos inermis
Growth Form: irregular, spreading
Crown Density: open, ne-textured
Size: 35-75 eet high
15-50 oot spread
Drought Resistance: very good
Cold Hardiness: very good
Growth Rate: rapid
Lie Span: moderate to long
Elevational Range: to 7,500 eet
Possible Insect Problems: pod gall midge; scale insects
Possible Disease Problems: thyronectria canker; sunscald;
cytospora canker
Wildlie Value: low
Miscellany: usually thornless
HackberryCeltis occidentalis
Growth Form: globular
Crown Density: moderate
Size: 40-60 eet high
40-60 oot spread
Drought Resistance: very good
Cold Hardiness: very good
Growth Rate: rapid to moderate
Lie Span: long
Elevational Range: to 7,000 eet
Soil Conditions: tolerates alkaline well; moderately
salt tolerant
Possible Insect Problems: lea gall psyllids; spiny elmcaterpillar; nipple gall always present
Possible Disease Problems: hackberry witches broom
Wildlie Value: high: songbirds and small mammals
Seasonal Color: pale lemon-yellow oliage in all
Miscellany: native; wood o commercial value
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Lombardy poplarPopulus nigra Italica
Growth Form: columnar to ovoid
Crown Density: moderate
Size: to 40 eet high
10-15 oot spread
Drought Resistance: poor
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: short
Elevational Range: to 8,000 eetPossible Insect Problems: all webworm
Possible Disease Problems: bacterial wetwood; cytospora
canker
Wildlie Value: low
Miscellany: best or temporary protection only
Bur oakQuercus macrocarpa
Growth Form: globular
Crown Density: moderate
Size: to 75 eet high
Drought Resistance: excellent
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: very long
Elevational Range: to 7,000 eet
Soil Conditions: tolerates alkaline well
Possible Insect Problems: scales, gall wasps
Wildlie Value: excellent: acorn ood value or birds andmammals
Seasonal Color: not conspicuous
Miscellany: can live more than 200 years
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Coyote willowSalix exigua
Growth Form: irregular
Crown Density: dense
Size: to 10 eet high; spreading
Drought Resistance: poor
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: short
Elevational Range: to 9,500 eet
Soil Conditions: moist
Possible Insect Problems: willow and poplar borers; sawfy
gallsPossible Disease Problems: lea rust
Wildlie Value: high: ood and cover or birds; browse value
or deer, elk and moose
Seasonal Color: not conspicuous
Miscellany: native; suckers and spreads
Peachlea willowSalix amygdaloides
Growth Form: irregular
Crown Density: open
Size: to 40 eet high
Drought Resistance: poor
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational range: to 9,500 eet
Soil Conditions: moist
Possible Insect Problems: willow and poplar borers
Possible Disease Problems: cytospora canker, lea rust
Wildlie Value: high: ood and cover or birds, browse value
or deer, elk & moose
Seasonal Color: not conspicuous
Miscellany: native
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Prairie Sky CottonwoodPopulus x canadensis Prairie Sky
Growth Form: columnar
Crown Density: moderate
Size: 50 eet high
10 oot spread
Drought Resistance: low
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 8,000
Soil Conditions: Adapted to coarse and medium textured
soilsPossible Insect Problems: Cottonwood lea beetle
Possible Disease Problems: Good canker resistance
Wildlie Value: low
Seasonal Color: not conspicuous
Miscellany: usually cottonless
Gambel OakQuercus gambelii
Growth Form: irregular
Crown Density: moderate
Size: 4 to 15 eet high
Spread variable
Drought Resistance: Low
Cold Hardiness: Good
Growth Rate: Slow
Lie Span: Long
Elevational Range: 4100 to 9000
Soil Conditions: Adapted to coarse and medium textured
soils
Possible Insect Problems: gall wasps
Possible Disease Problems: anthracnose
Wildlie Value: High
Seasonal Color: not conspicuous
Miscellany: native though can be regarded as weedy in
some areas
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AspenPopulus tremuloides
Growth Form: ovoid to columnar
Crown Density: open
Size: 35-50 eet high
20-35 oot spread
Drought Resistance: poor
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: to 11,000 eet
Possible Insect Problems: poplar borer, scale, tent caterpillar,
twig gall fy
Possible Disease Problems: cytospora canker, lea spot
Wildlie Value: high: buds and catkins or ood value or
grouse and browsers
Seasonal Color: yellow all color
Miscellany: native
Lancelea CottonwoodPopulus x acuminata
Growth Form: irregular
Crown Density: moderate
Size: 40 to 60 eet high
25 oot spread
Drought Resistance: low
Cold Hardiness: good
Growth Rate: rapid
Lie Span: moderate
Elevational Range: 4000 to 8500
Soil Conditions: adapted to coarse soils
Possible Insect Problems: borersPossible Disease Problems: cankers
Wildlie Value: Low
Seasonal Color: Can have attractive yellow leaves in all
Miscellany: male fowers
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Colorado blue sprucePicea pungens
Growth Form: conical
Crown Density: dense
Size: 60-100 eet high
15-35 oot spread
Drought Resistance: air
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: long
Elevational Range: to 9,500 eet
Soil Conditions: air alkaline tolerance
Possible Insect Problems: pine needle scale, tussock moth,
terminal weevil, gall aphids
Possible Disease Problems: Valsa canker, spruce witches
broom
Wildlie Value: high: song and ground birds and grouse;
hooed and small browsers
Seasonal Color: bluish evergreen
Miscellany: native; Colorados state tree; high ornamental
value
Austrian pinePinus nigra
Growth Form: pyramidal
Crown Density open
Size: to 40 eet high
to 30 oot spread
Drought Resistance: excellent
Cold Hardiness: air
Growth Rate: slow
Lie Span: long
Elevational Range: to 7,000 eet
Soil Conditions: tolerates alkaline well
Possible Insect Problems: pine tip mothPossible Disease Problems: airly resistant
Wildlie Value: high: song and ground birds, ood value rom
seeds
Seasonal Color: evergreen
Miscellany: orms a good screen
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Douglas-frPseudotsuga menziesii
Growth Form: conical to pyramidal
Crown Density: dense
Size: 70-100 eet high
20-35 oot spread
Drought Resistance: good
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: long
Elevational Range: 6,000 to 9,000 eet
Possible Insect Problems: spruce budworm
Possible Disease Problems: shoestring root rot; Douglas-rmistletoe, bacterial gall
Wildlie Value: high: ood value or grouse, songbirds and
small mammals; browse or deer and elk
Seasonal Color: evergreen
Miscellany: native
Growth Form: conical to spirelike
Crown Density: dense
Size: 70-90 eet high
15-30 oot spread
Drought Resistance: very good
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: long
Elevational Range: 8,000 to 11,000 eet
Possible Insect Problems: spruce bark beetle, spruce
budworm
Possible Disease Problems: root rot, spruce broom rust
Wildlie Value: high: ood value or grouse and songbirds;
browse or deer and elk
Seasonal Color: evergreen
Miscellany: native; intolerant o direct sun, requires shade
Engelmann sprucePicea engelmannii
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Lodgepole pinePinus contorta
Growth Form: conical to spirelike
Crown Density: open
Size: 35-70 eet high
15-30 oot spread
Drought Resistance: excellent
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: long
Elevational Range: 6,000 to 11,000 eet
Possible Insect Problems: mountain pine beetle
Possible Disease Problems: mistletoe, western gall rust
Wildlie Value: high: ood value rom seeds or upland game
and songbirds
Seasonal Color: evergreen
Miscellany: native; good conier or high altitude
windbreaks
Eastern redcedarJuniperus virginiana
Growth Form: pyramidal to irregular
Crown Density: dense
Size: 15-20 eet high
10-20 oot spread
Drought Resistance: excellent
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: long
Elevational Range: to 7,500 eet
Soil Conditions: tolerates alkaline and salts well
Possible Insect Problems: spider mitesPossible Disease Problems: rust
Wildlie Value: high: song and game birds; hooed browsers,
good cover
Seasonal Color: rusty red
Miscellany: very adaptable to site conditions
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Pinon pinePinus edulis
Growth Form: rounded to irregular
Crown Density: dense
Size: 15-30 eet high
15-30 oot spread
Drought Resistance: excellent
Cold Hardiness: excellent
Growth Rate: slow
Lie Span long
Elevational Range: to 7,500 eet
Possible Insect Problems: pinon pitch borer, ips, spindle gall
midge
Possible Disease Problems: black stain root disease,mistletoe
Wildlie Value: high: ood value rom seeds or upland game
and songbirds
Seasonal Color: evergreen
Miscellany: native
Ponderosa pinePinus ponderosa
Growth Form: conical to ovoid
Crown Density: moderately dense
Size: 40-100 eet high
15-60 oot spread
Drought Resistance: excellent
Cold Hardiness: excellent
Growth Rate: rapid to moderate
Lie Span: long
Elevational Range: to 9,000 eet
Soil Conditions: tolerates alkaline well
Possible Insect Problems: sawfies, bark beetle, tip moth
Possible Disease Problems: western gall rust; dwar
mistletoe, shoestring root rot
Wildlie Value: high: song and ground birds, small mammals,
browsers
Seasonal Color: evergreen
Miscellany: native; needs well-drained soils
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Scotch pinePinus sylvestris
Growth Form: pyramidal to ovoid
Crown Density: open
Size: 40-65 eet high
20-40 oot spread
Drought Resistance: very good
Cold Hardiness: very good
Growth Rate: rapid
Lie Span: long
Elevational Range: to 7,000 eet
Soil Conditions: tolerates alkaline
Possible Insect Problems: tip moths, ips beetles
Possible Disease Problems: airly resistant
Wildlie Value: high: ood value or upland game and song
birds
Seasonal Color: evergreen
Miscellany: makes an excellent Christmas tree
Rocky Mountain juniperJuniperus scopulorum
Growth Form: pyramidal to irregular
Crown Density: dense
Size: 15-50 eet high
10-35 oot spread
Drought Resistance: excellent
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: long
Elevational Range: to 9,000 eet
Soil Conditions: excellent alkaline tolerance
Possible Insect Problems: spider mites, bark beetles
Possible Disease Problems: juniper broom rust, juniper gallrusts, juniper true mistletoe
Wildlie Value: high: song and ground birds, large browsing
mammals
Seasonal Color: evergreen
Miscellany: native
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White frAbies concolor
Growth Form: conical
Crown Density: dense
Size: 60-100 eet high
20-35 oot spread
Drought Resistance: very good
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: long
Elevational Range: 6,000 to 9,000 eet
Possible Insect Problems: spruce budworm, Douglas-r
tussock mothPossible Disease Problems: needlecast, root rot
Wildlie Value: moderate: ood source and winter cover or
grouse and songbirds
Seasonal Color: bluish evergreen
Miscellany: native
Bristlecone pinePinus aristata
Growth Form: irregular
Crown Density: open
Size: 20-40 eet high
Drought Resistance: air
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: long
Elevational Range: to 11,000 eet
Possible Insect Problems: bark beetles
Possible Disease Problems: white pine blister rust
Wildlie Value: high: ood value rom seeds or upland game
and songbirds
Seasonal Color: evergreen
Miscellany: native
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Narrowlea cottonwoodPopulus angustiolia
Growth Form: ovoid to irregular
Crown Density: moderate
Size: to 50 eet high
to 30 oot spread
Drought Resistance: air
Cold Hardiness: excellent
Growth Rate: rapid
Lie Span: moderate
Elevational Range: 5,000 to 9,500 eet
Soil Conditions: tolerates alkaline well
Possible Insect Problems: blotchmine beetle
Possible Disease Problems: cytospora canker; bacterialwetwood
Wildlie Value: moderate: nesting and roosting cover; buds
catkins and twigs or ood value
Seasonal Color: yellow
Miscellany: native; very weak wood
Fremont CottonwoodPopulus remontii
Growth Form: spreading
Crown Density: moderate
Size: 50-90 eet high
35 oot spread
Drought Resistance: MediumCold Hardiness: Fair
Growth Rate: Rapid
Lie Span: Moderate
Elevational Range: 4000 to 7000 eet
Soil Conditions: adapted to a variety o soil types
Possible Insect Problems: cottonwood lea beetle
Possible Disease Problems: mistletoe
Wildlie Value: low
Seasonal Color: attractive yellow
Miscellany: native o Western Colorado, not cottonless
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Limber pinePinus fexilis
Growth Form: conical to ovoid
Crown Density: open
Size: to 35 eet high
Drought Resistance: good
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: long
Elevational Range: to 11,000 eet
Soil Conditions: well-drained
Possible Insect Problems: bark beetlesPossible Disease Problems: mistletoe
Wildlie Value: high: ood value rom seeds or upland game
and songbirds
Seasonal Color: evergreen
Miscellany: native
Subalpine frAbies lasiocarpa
Growth Form: conical to spire-like
Crown Density: moderate
Size: 60-100 eet high
10 to 20 oot spread
Drought Resistance: poor
Cold Hardiness: excellent
Growth Rate: slow
Lie Span: long
Elevational Range: 8,000 to 11,000 eetPossible Insect Problems: balsam bark beetle, western spruce
budworm, r engraver
Possible Disease Problems: armillaria root disease,
annosus root rot
Wildlie Value: air: grouse, nutcracker, sapsucker, deer, elk,
moose
Seasonal Color: distinctive black/purple cones
Miscellany: native, not suited to lower elevations, requires
shade
Photos courtesy Forest Service Canada
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