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


Size: 6-8 eet high

3-5 oot spread

Drought Resistance: very good


Growth Rate: rapid

Lie Span: moderate


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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2

ChokecherryPrunus virginiana


Crown Density: moderate

Size: 6-20 eet high

6-20 oot spread

Drought Resistance: good


Growth Rate: rapid

Lie Span: moderate



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


Size: 8-12 eet high

8-12 oot spread



Growth Rate: rapid

Lie Span: moderate



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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3

Native plumPrunus americana

Growth Form: irregular

Crown Density: open

Size: to 8 eet high

to 8 oot spread



Growth Rate: rapid

Lie Span: moderate



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



Size: to 4 eet high

to 8 oot spread



Growth Rate: rapid to moderate

Lie Span: moderate


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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4

Sand cherryPrunus besseyi

Growth Form: spreading


Size: 3 eet high

4 oot spread


Cold Hardiness: good

Growth Rate: rapid

Lie Span: short


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



Size: to 8 eet high

to 8 oot spread



Growth Rate: rapid

Lie Span: moderate



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


Crown Density: open

Size: to 8 eet high

to 8 oot spread



Growth Rate: rapid

Lie Span: moderateElevational Range: to 6,000 eet


Possible Insect Problems: airly resistant

Possible Disease Problems: airly resistant

Wildlie Value: air; cover and browse value

Wild roseRosa spp.


Crown Density: open

Size: 4 eet high, spreading



Growth Rate: rapid

Lie Span: moderate


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



Size: 10 eet high; spreading



Growth Rate: moderate

Lie Span: long


Soil Conditions: tolerates alkaline

Possible Insect Problems: unimportantPossible Disease Problems: unimportant

Wildlie Value: good: ood value; excellent: cover or small

game and songbird nesting


Miscellany: native; edible ruit or jellies; orms thickets

Four-wing saltbushAtriplex canascens



Size: 3 eet high

5 oot spread




Lie Span: long


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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7

Golden currantRibes aureum



Size: 7 eet high

3 oot spread



Growth Rate: rapid

Lie Span: moderate



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.



Size: 6 eet high

5 oot spread

Drought Resistance: air



Lie Span: long



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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8

Mountain mahoganyCercocarpus montanus



Size: 6 eet high

5 oot spread




Lie Span: moderate


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


Miscellany: native; seed showy in all

Red-osier dogwoodCornus serica


Crown Density: open

Size: to 8 eet high

to 6 oot spread



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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9

New Mexico orestiera (privet)Forestiera neomexicana



Size: 10 eet high




Lie Span: long


Soil Conditions: moist; alkaline tolerance

Possible Insect Problems: unimportantPossible Disease Problems: unimportant

Wildlie Value: good; ruit valuable to quail, songbirds;

excellent: cover


Miscellany: native; bluish-black ruit; yellow fowers

SnowberrySymphoricarpos spp.


Crown Density: open

Size: 3 eet high




Lie Span: moderate



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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10

Green ashFraxinus pennsylvanica

Growth Form: irregular to elliptical


Size: 35-75 eet high

15-35 oot spread



Growth Rate: rapid

Lie Span: long



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



Size: 3 eet high

3-5 oot spread


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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11

Siberian elmUlmus pumila



Size: to 40 eet high

30-40 oot spread



Growth Rate: rapid

Lie Span: moderate


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)


Miscellany: hardiest o all elms; can be weedy

Growth Form: globular to irregular



50-75 oot spread

Drought Resistance: poor

Cold Hardiness: excellentGrowth Rate: rapid

Lie Span: moderate


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



to 35 oot spread



Growth Rate: rapid

Lie Span: moderate


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



Growth Rate: rapid

Lie Span: moderate

Elevational range: to 9,500 eet


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


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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13

HoneylocustGleditsia triacanthos inermis

Growth Form: irregular, spreading

Crown Density: open, ne-textured


15-50 oot spread



Growth Rate: rapid

Lie Span: moderate to long


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



40-60 oot spread




Lie Span: long


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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14

Lombardy poplarPopulus nigra Italica

Growth Form: columnar to ovoid



10-15 oot spread



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





Growth Rate: slow

Lie Span: very long



Possible Insect Problems: scales, gall wasps

Wildlie Value: excellent: acorn ood value or birds andmammals


Miscellany: can live more than 200 years


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15

Coyote willowSalix exigua



Size: to 10 eet high; spreading



Growth Rate: rapid

Lie Span: short



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


Miscellany: native; suckers and spreads

Peachlea willowSalix amygdaloides


Crown Density: open




Growth Rate: rapid

Lie Span: moderate

Elevational range: to 9,500 eet


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


Miscellany: native


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Prairie Sky CottonwoodPopulus x canadensis Prairie Sky

Growth Form: columnar


Size: 50 eet high

10 oot spread

Drought Resistance: low


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


Miscellany: usually cottonless

Gambel OakQuercus gambelii



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


Miscellany: native though can be regarded as weedy in

some areas


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17

AspenPopulus tremuloides

Growth Form: ovoid to columnar

Crown Density: open


20-35 oot spread



Growth Rate: rapid

Lie Span: moderate


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



Size: 40 to 60 eet high

25 oot spread

Drought Resistance: low


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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18

Colorado blue sprucePicea pungens

Growth Form: conical



15-35 oot spread



Growth Rate: slow

Lie Span: long


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


to 30 oot spread


Cold Hardiness: air

Growth Rate: slow

Lie Span: long



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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19

Douglas-frPseudotsuga menziesii

Growth Form: conical to pyramidal



20-35 oot spread



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


Miscellany: native

Growth Form: conical to spirelike



15-30 oot spread



Growth Rate: slow

Lie Span: long


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


Miscellany: native; intolerant o direct sun, requires shade

Engelmann sprucePicea engelmannii


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20

Lodgepole pinePinus contorta

Growth Form: conical to spirelike

Crown Density: open


15-30 oot spread



Growth Rate: slow

Lie Span: long


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


Miscellany: native; good conier or high altitude

windbreaks

Eastern redcedarJuniperus virginiana

Growth Form: pyramidal to irregular



10-20 oot spread



Growth Rate: slow

Lie Span: long


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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21

Pinon pinePinus edulis

Growth Form: rounded to irregular



15-30 oot spread



Growth Rate: slow

Lie Span long


Possible Insect Problems: pinon pitch borer, ips, spindle gall

midge

Possible Disease Problems: black stain root disease,mistletoe


and songbirds


Miscellany: native

Ponderosa pinePinus ponderosa

Growth Form: conical to ovoid

Crown Density: moderately dense


15-60 oot spread




Lie Span: long



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


Miscellany: native; needs well-drained soils


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22

Scotch pinePinus sylvestris

Growth Form: pyramidal to ovoid

Crown Density: open


20-40 oot spread



Growth Rate: rapid

Lie Span: long


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


Miscellany: makes an excellent Christmas tree

Rocky Mountain juniperJuniperus scopulorum

Growth Form: pyramidal to irregular



10-35 oot spread



Growth Rate: slow

Lie Span: long


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


Miscellany: native


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23

White frAbies concolor

Growth Form: conical



20-35 oot spread



Growth Rate: slow

Lie Span: long


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


Crown Density: open




Growth Rate: slow

Lie Span: long


Possible Insect Problems: bark beetles

Possible Disease Problems: white pine blister rust


and songbirds


Miscellany: native


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24

Narrowlea cottonwoodPopulus angustiolia




to 30 oot spread



Growth Rate: rapid

Lie Span: moderate



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



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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25

Limber pinePinus fexilis

Growth Form: conical to ovoid

Crown Density: open




Growth Rate: slow

Lie Span: long


Soil Conditions: well-drained

Possible Insect Problems: bark beetlesPossible Disease Problems: mistletoe


and songbirds


Miscellany: native

Subalpine frAbies lasiocarpa

Growth Form: conical to spire-like



10 to 20 oot spread



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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Tree BuyersGuide