APPENDIX A

ZONING ORDINANCE

TOWN OF DUCK

VEGETATION PLANTING GUIDELINES

 

 

 

Canopy Requirements

Fifteen percent (15%) of the site (area that is minus the footprint of the principle dwelling or commercial buildings) must have vegetative canopy cover either by preservation or by installation. If preservation is used, vegetation must have a protective device around the drip-line of the tree which prohibits construction activity, storage or parking in this area except as permitted by the tree and vegetation ordinance. These preservation methods must be indicated and detailed on the vegetation management plan.  If the canopy cover is accomplished by installation, the following tree categories can be used.

 

A) Large trees listed below, installed at 6’-8’ in height, provide a 400 square foot canopy credit.

 

B) Small trees, listed below, installed at 6’-8’ in height, provide a 200 square foot canopy credit.

 

Undesirable trees cannot be counted to meet the canopy requirements.  Palm trees and tropical vegetation (other than the dwarf palmetto listed below) cannot be counted to meet the canopy requirements.  Applicants may request substitution of other types of vegetation subject to the review procedures of the vegetation ordinance.

 

Vegetation in the form of small trees, bushes or shrubs may be substituted for large trees at a conversion rate of two small canopy trees or ten mulched shrubs (18-24 inches minimum height at planting or of a 3 gallon size) for one large canopy tree.


 

SMALL TREES

6-8’ AT PLANTING

CANOPY COVER 200 Square Feet

Botanical Name

Common Name

Acer buergeranum

Trident Maple

Acer campestre

Hedge Maple

Acer griseun

Paperbark Maple

Amelanchier Canadensis*

Serviceberry

Betula nigra (dwarf cultivar)

River Birch (dwarf)

Carpinus betulus

Europen Hornbeam/Ironwood

Carpinus caroliniana*

American Hornbeam

Cercis canandensis

Red Bud

Chioanthus virginicus

White Fringe Tree

Cornus florida*

Flowering Dogwood

Cornus kousa

Kousa Dogwood

Cornus mas

Cornelian Cherry

Cornus stricta*

Swamp Dogwood

Crataegus phaenopyrum

Washington Hawthorn

Diospyros virginiana*

Persimmon

Halesia Carolina

Carolina Silverbell

Ilex opaca

American Holly

Koelreuteria paniculata

Golden Rain Tree

Lagerstroemia

Crape Myrtle (all species and cultivars except Dwarf and Semi-Dwarf)

Magnolia soulangeana

Saucer Magnolia

Magnolia stellata

Star Magnolia

Magnolia virginiana*

Sweet Bay Magnolia

Malus

Flowering Crabapple (all species and cultivars)

Osmanthus americanus*

Devilwood

Ostrya virginiana

American Hophornbean

Oxydendrum arboretum

Sourwood

Persea borbonia*

Redbay

Pinus nigra

Austrian Pine

Prunus carolinia*

Carolina Laurel Cherry

Prunus serrulata

All Cultivars

Prunus subhirtella pendula

Weeping Cherry

Prunus yedoensis

All Cultivars

Pyrus calleryana “Aristocrat”

Approved Callery Pear Cultivars

Quercus acuta

Japanese Evergreen Oak

Quercus robur “Fastigiata”

Pyramidal English Oak

Sophora japonica

Pagoda Tree (all cultivars)

Stewartia monadelpha

Tall Stewartia

Styrax japonicus

Japanese Snowbell Tree

Vaccinium arboretum*

Sparkleberry

 

 

 

LARGE TREES

6-8’ AT PLANTING

CANOPY COVER 400 Square Feet

Botanical Name

Common Name

Acer rubrum*

Red Maple (All cultivars)

Betula nigra

River Birch

Celtis (all species)

Hackberry

Cercidiphyllum japonicum

Katsura Tree

Fraxinus pennsylvanica

Green Ash

Fraxinus pennsylvanica “Marxhall’s Seedless”

Green Ash “Marshall’s Seedless”

Ginkgo biloba

Ginkgo (male variety – Maidenhair)

Gordonia lasianthus*

Loblolly Bay

Juniperus virginia var. silicicola*

Southern Redcedar

Liriodendron tulipifera

Tulip Poplar

Magnolia grandiflora

Southern Magnolia

Metasequoia glyptostroboides

Dawn Redwood

Nyssa sylvatica*

Black Gum

Pinus elliottii

Slash Pine

Pinus taeda

Loblolly Pine

Platanus acerifolia “bloodgood”

“Bloodgood” London Plane

Platanus occidentalis

American Sycamore

Quercus acutissima

Sawtooth Oak

Quercus alba

White Oak

Quercus bicolor

Swamp White Oak

Quercus coccinea

Scarlet Oak

Quercus darlingtonia

Darlington Oak

Quercus falcata*

Southern Red Oak

Quercus hemisphaerica*

Laurel Oak

Quercus macrocarpa

Bur Oak (favors moist soil)

Quercus prinus

Chestnut Oak

Quercus nigra

Water Oak

Quercus phellos

Willow Oak

Quercus robur

English Oak

Quercus robur “Fastigiata”

Pyramidal English Oak

Quercus velutina

Black Oak

Quercus virginiana

Live Oak

Taxodium distichum

Bald Cypress

Tilia cordata

Little Leaf Linden (all cultivars)

Zelkova serrata

Japanese Zelkova

Zelkova serrata “Village Green”

“Village Green Zelkova”

 

 

 

 

UNDESIRABLE TREE SPECIES

Botanical Name

Common Name

Problem

Acer negundo

Box Elder

Weak wood, short lived, insects

Acer saccarinum

Silver Maple

Weak wood, insects, shallow roots, prolific seeding

Ailanthus altissima

Tree of Heaven

Offensive odor (male), poor landscape qualities

Albizia julibrissin

Mimosa

Mimosa Wilt Disease

Betula papyrifera

Paper Birch

Insects

Catalpa bignonoides

Southern Catalpa

Messy flowers

Cedrus deodora

Deodora Cedar

Heat stress decline

Ginkgo biloba

Ginko (female plant)

Offensive fruit odor

Laburnum anagyroides

Golden Chain Tree

Environmental stress

Magnolia grandiflora*

Southern Magnolia

Shallow roots, seed pods

Melia azedarach Seed

Chinaberry

Weak wood, suckers

Morus species

Mulberries

Objectionable fruit

Paulownia tomentosa

Empress Tree

Seed pods

Pinus sylvestris

Scotch Pine

Environmental stress (heat, poor drainage, insects)

Pinus thunbergi

Japanese Black Pine

Insects

Populus alba

White or Silver Poplar

Weak wood, diseases

Populus deltoids

Eastern Cottonwood

Weak wood, extensive root system, prolific seeding

Populus nigra

Lombardy Poplar

Extensive root system, short lived, diseases

Prunus seroina

Black Cherry

Objectionable fruit

Pyrus calleryana “Bradford”

Bradford Pear

Structural weakness

Salix

Willow

Weak wood, roots

Ulmus Americana

American Elm

Dutch Elm Disease

Ulmus pumila

Siberian Elm

Short lived, insects

 

 

 

 

 

NATIVE BUSHES/SHRUBS

Botanical Name

Common Name

Amorpha fruticosa*

Indigo-bush

Aronia arbutifolia*

Red Chokeberry

Borrichia frutescens*

Sea Ox-eye

Callicarpa Americana*

Beautyberry

Cephalanthus occidentalis*

Buttonbush

Clethra alnifolia*

Sweet Pepperbush

Ilex glabra*

Inkberry

Ilex vomitoria*

Yaupon Holly

Itea virginica*

Virginia Willow (Sweetspire)

Iva frutescens*

Marsh elder

Leucothoe axillaris*

Coastal Leucothoe

Lyonia lucida*

Fetterbush

Myrica cerifera*

Southern Waxmyrtle

Myrica pensylvanica*

Northern Bayberry

Rhododendron atlanticum*

Dwarf Azalea

Rhus copallina*

Shining Sumac

Sabal minor*

Dwarf Palmetto

Salix caroliniana*

Swamp Willow

Vaccinium corymbosum*

Highbush Blueberry

 

*Native Plants to Dare County (existed since before the arrival of the colonists)