Weld County Unincorporated
City Zoning Code
City Zoning Code
APPENDIX 23-I
PARTIAL LIST OF PLANT MATERIALS AS GENERAL RESOURCE
The following is a partial list of plant materials that are native or adapted to Colorado's Front Range. This is not an all-inclusive list and is intended only to act as a general resource.
| Common Name | Botanical Name | Mature Height | Mature Width |
|---|---|---|---|
| EVERGREEN TREES | |||
| White Fir ** *** | Abies concolor | 50—60 feet | 20—25 feet |
| Oneseed Juniper ** | Juniperus monosperma | 40 feet | 10—12 feet |
| Rocky Mountain Juniper ** | Juniperus scopulorum | 4—8 feet | 1—6 feet |
| Eastern Red Cedar | Juniperus virginiana | 50 feet | 10—12 feet |
| Colorado Blue Spruce ** | Picea pungens | 80—100 feet | 15—25 feet |
|
Bristlecone
Pine ** *** | Pinus aristata | 20—40 feet | 15—20 feet |
| Pinyon Pine ** *** | Pinus edulis | 15—25 feet | 15—20 feet |
| Limber Pine ** *** | Pinus flexilis | 30—40 feet | 12—15 feet |
| Austrian Pine | Pinus nigra | 30—40 feet | 10—15 feet |
|
Ponderosa
Pine ** *** | Pinus ponderosa | 50—60 feet | 20—25 feet |
| Douglas-fir ** | Pseudotsuga menziesii | 40—80 feet | 10—12 feet |
| SHADE TREES | |||
| Common Horsechestnut | Aesculus hippocastanum | 50—75 feet | 40—60 feet |
| Western Catalpa | Catalpa speciosa | 40—60 feet | 20—30 feet |
| Hackberry *** | Celtis occidentalis | 40—50 feet | 35—40 feet |
| Autumn Purple Ash | Fraxinus americana | 50—80 feet | 25—40 feet |
| Green Ash | Fraxinus pennsylvanica lanceolata | 50—60 feet | 25—30 feet |
| Patmore Ash *** | Fraxinus pennsylvanica 'Patmore' | 40—60 feet | 20—40 feet |
| Thornless Honeylocust *** | Gleditsia triacanthos var. inermis | 35—40 feet | 30—50 feet |
| Kentucky Coffeetree | Gymnocladus dioicus | 60—75 feet | 40—50 feet |
| Bur Oak *** | Quercus macrocarpa | 40—60 feet | 40—50 feet |
| Linden * *** | Tilia species | 30—60 feet | 20—50 feet |
| ORNAMENTAL TREES | |||
| Rocky Mountain Maple ** *** | Acer glabrum | 10—25 feet | 10—15 feet |
| Bigtooth/Wasatch Maple ** *** | Acer grandidentatum | 20—25 feet | 15—20 feet |
|
American
Hornbeam *** | Carpinus caroliana | 20—30 feet | 15—20 feet |
| Eastern Redbud *** | Cercis canadensis | 25—35 feet | 15—20 feet |
|
Russian
Hawthorn *** | Crataegus ambigua | 15—20 feet | 10—15 feet |
|
Cockspur
Hawthorn *** | Crataegus crusgalli 'Cockspur' | 15—20 feet | 10—15 feet |
|
Hawthorn
species * ** | Crataegus spp. | 18—25 feet | 15—20 feet |
| Golden Raintree | Koelreuteria paniculata | 30—40 feet | 30 feet |
| Dolgo Flowering Crabapple *** | Malus 'Dolgo' | 25—30 feet | 25—30 feet |
| Radiant Flowering Crabapple *** | Malus 'Radiant' | 15—20 feet | 15—20 feet |
| Flowering Crabapple* | Malus spp. | 15—30 feet | 10—20 feet |
| Native Plum | Prunus americana | 15—20 feet | 7—10 feet |
| Newport Plum | Prunus americana 'Newport' | 15—20 feet | 10—15 feet |
|
Amur
Chokecherry *** | Prunus maackii | 20—25 feet | 18—20 feet |
| European Bird Cherry *** | Prunus padus | 25—30 feet | 15—20 feet |
| Chokecherry ** | Prunus virginiana | 20—30 feet | 18—25 feet |
| Callery Pear *** | Pyrus calleryana | 25—30 feet | 15—20 feet |
| Gambel Oak ** | Quercus gambelli | 20—30 feet | 10—15 feet |
| SMALL SHRUBS | |||
| Leadplant ** *** | Amorpha canescens | 2—4 feet | 2—4 feet |
| Sage species * ** | Artemisia spp. | 1—2 feet | 1—2 feet |
| Barberry species * ** | Berberis spp. | 2—6 feet | 2—8 feet |
| Pygmy Peashrub *** | Caragana pygmaea | 3—4 feet | 3—5 feet |
| Blue Mist/Blue Beard Spiraea *** | Caryopteris x clandonensis | 3—5 feet | 3—5 feet |
| Littleleaf Mountain Mahogany *** | Cercocarpus intricatus | 2—4 feet | 2—3 feet |
| Cotoneaster species * | Cotoneaster spp. | 1—6 feet | 1—6 feet |
| Mormon Tea ** *** | Ephedra spp. | 3—6 feet | 3—6 feet |
| Euonymus species * | Euonymus spp. | 1—6 feet | 7 feet |
| Juniper species * ** | Juniperus spp. | 1—16 feet | 2—20 feet |
| Oregon Grape | Mahonia aquifolium | 3—6 feet | 3—5 feet |
| Rocky Mountain Ninebark ** | Physocarpus monogynus | 3—4 feet | 3—4 feet |
| Bush Cinquefoil * ** | Potentilla fructicosa spp. | 2—4 feet | 1—3 feet |
| Alpine Currant *** | Ribes alpinum | 3—6 feet | 4—5 feet |
| Spiraea species * | Spiraea spp. | 2—6 feet | 1—6 feet |
| Hancock Coralberry | Symphocarpus orbiculatus 'Hancock' | 2—5 feet | 4—8 feet |
| Snowberry *** | Symphoricarpos alba | 3—5 feet | 3—10 feet |
| MEDIUM/LARGE SHRUBS | |||
| Serviceberry | Amelanchier laevis | 8—15 feet | 6—12 feet |
| Siberian Peashrub | Caragana arborscens | 15—20 feet | 12—18 feet |
|
Mountain
Mahogany ** *** | Cercocarpus montanus | 10—15 feet | 10—15 feet |
| Curl-Leaf Mountain Mahogany ** | Cerocarpus ledifolius | 5—12 feet | 5—12 feet |
| Fernbush *** | Chamaebatiaria millifolium | 3—5 feet | 3—6 feet |
| Rabbitbrush ** *** | Chrysothamnus nauseosus | 3—5 feet | 3—5 feet |
| Dogwood * ** *** | Cornus spp. | 6—10 feet | 6—10 feet |
| Apache Plume ** *** | Fallugia paradoxa | 3—5 feet | 3—5 feet |
| Forsythia species * | Forsythia spp. | 8—10 feet | 10—12 feet |
| Privet species * | Ligustrum spp. | 12—15 feet | 12—15 feet |
|
Honeysuckle
species * ** | Lonicera spp. | 4—10 feet | 6—8 feet |
| Arnold Red Honeysuckle *** | Lonicera tatarica 'Arnold Red' | 8—10 feet | 8—10 feet |
| Mockorange * ** *** | Philadelphus spp. | 6—8 feet | 6—8 feet |
| Cistena Cherry | Prunus cistena | 7—10 feet | 5—8 feet |
|
Western Sand
Cherry ** *** | Prunus pumila var. besseyi | 3—6 feet | 3—6 feet |
| Common Buckthorn | Rhamnus cathartica | 18—25 feet | 15—25 feet |
| Sumac species * ** | Rhus spp. | 3—10 feet | 3—6 feet |
|
Three-leaf
Sumac ** *** | Rhus trilobata | 4—6 feet | 4—6 feet |
|
Golden
Currant ** *** | Ribes aureum | 4—6 feet | 4—6 feet |
| Austrian Copper Rose | Rosa foetida bicolor | 4—5 feet | 4—5 feet |
| Rugosa Rose | Rosa rugosa | 3—8 feet | 2—5 feet |
|
Boulder
Raspberry *** | Rubus deliciosus | 4—6 feet | 4—6 feet |
| Blue Stem Willow | Salix purpurea | 10—18 feet | 7—15 feet |
| Buffalo Berry | Sheperdia canadensis | 6—8 feet | 3—9 feet |
|
Vanhoutte
Spiraea *** | Spiraea x vanhoutte | 4—5 feet | 4—6 feet |
| Lilac species * *** | Syringa spp. | 8—12 feet | 8—12 feet |
| Viburnum species * | Viburnum spp. | 3—20 feet | 3—12 feet |
| Adam's Needle *** | Yucca filamentosa | 2—4 feet | 2—4 feet |
| SPREADING JUNIPERS (EVERGREENS) | |||
|
Bar Harbor
Juniper *** | Juniperus horizontalis 'Bar Harbor' | 6—8 inches | 4—6 feet |
|
Blue Chip
Juniper *** | Juniperus horizontalis 'Blue Chip' | 8—12 inches | 4—6 feet |
| Blue Rug Juniper *** | Juniperus horizontalis 'Blue Rug' | 4—6 inches | 5—6 feet |
| Buffalo Juniper *** | Juniperus savin 'Buffalo' | 12—18 inches | 6—8 feet |
| ORNAMENTAL GRASSES | |||
| Big Bluestem ** *** | Andropogon gerardii | 5—6 feet | 4—6 feet |
| Little Bluestem *** | Andropogon scoparium | 2—3 feet | 1—2 feet |
| Maiden or Miscanthus Grass *** | Miscanthus sinensis | 3—8 feet | 2—5 feet |
| Switch Grass ** *** | Panicum virgatum | 3—5 feet | 3—4 feet |
| Dwarf Fountain Grass *** | Pennisetum alopecuroides | 2—3 feet | 2—3 feet |
|
Miscanthus
Grass *** | Phalaris arundinacea 'Picta' | 12—15 inches | 3+ feet |
*Depending on cultivar/species.
**Native to Colorado (Source: https://coloradoplants.jeffco.us/PlantSearch).
***These plant materials readily adapt to the conditions found in the Rocky Mountain region. With the wide range of altitudes, microclimates, and soil conditions, not every plant is suitable or hardy in all locations.
(Weld County Code Ordinance 2020-15)