TOWN OF DUCK VEGETATION PLANTING GUIDELINES Canopy Requirements Fifteen percent (15%) of residential sites or ten percent (10%) of commercial sites (area that is minus the footprint of the principal 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. Ornamental grasses may be substituted for large trees at a conversion rate of twenty plants (18-24 inches minimum height at planting or of a 3 gallon size) for one large canopy tree. Credit for smaller coastal grasses and forbs, such as American Beach Grass, will be calculated at 100 sprigs or plants for every 100 square feet. Credit will not be provided for retention of existing vegetation in oceanfront areas within the CAMA small structure setback. The table below provides a list of the acceptable trees and other plant species that may used when planting to meet the vegetative canopy requirements. The table is organized into categories of large and small trees, shrubs and bushes, ornamental grasses, and other grasses and forbs. Additionally, the table categorizes the plant species into the barrier island vegetative zones (see diagram) for which they are best adapted. This information is provided for reference purposes only. The Town of Duck makes no guarantee as to the heartiness or performance of listed plants in these areas; there are many other factors that will affect their survival. 1 Barrier Island Cross Section with Generalized Vegetative Zones Excerpt from Seacoast Plants of the Carolinas – For Conservation and Beautification, UNC Sea Grant Program, February 1973 Pine and hardwood or “forest” zone located on the leeward side of the island usually behind a dune ridge which provides protection from salt and wind; Middle “scrub” zone usually starts behind the protection of the frontal dunes “grass” or “pioneer” zone closest to the ocean with the most direct exposure to salt and wind Not listed in the above diagram is the salt marsh zone which is typically located along the sound shoreline between the high and low tide line. 2 TOWN OF DUCK VEGETATION PLANTING GUIDELINES Vegetative Zone Plant List Botanical Name Large Trees (6-8’ AT PLANTING Pioneer Common Name CANOPY COVER = 400 Square Feet) Acer rubrum* Betula nigra Celtis (all species) Cercidiphyllum japonicum Fraxinus pennsylvanica Fraxinus pennsylvanica “Marxhall’s Seedless” Ginkgo biloba Gordonia lasianthus* Juniperus virginia var. silicicola* Liriodendron tulipifera Magnolia grandiflora Metasequoia glyptostroboides Nyssa sylvatica* Pinus elliottii Pinus taeda Platanus acerifolia “bloodgood” Platanus occidentalis Quercus acutissima Quercus alba Quercus bicolor Quercus coccinea Quercus darlingtonia Quercus falcata* Quercus hemisphaerica* Quercus macrocarpa Quercus prinus Quercus nigra Quercus phellos Quercus robur Quercus robur “Fastigiata” Quercus velutina Quercus virginiana Red Maple (All cultivars) River Birch Hackberry Katsura Tree Green Ash Green Ash “Marshall’s Seedless” Ginkgo (male variety – Maidenhair) Loblolly Bay Southern Redcedar Tulip Poplar Southern Magnolia Dawn Redwood Black Gum Slash Pine Loblolly Pine “Bloodgood” London Plane American Sycamore Sawtooth Oak White Oak Swamp White Oak Scarlet Oak Darlington Oak Southern Red Oak Laurel Oak Bur Oak (favors moist soil) Chestnut Oak Water Oak Willow Oak English Oak Pyramidal English Oak Black Oak Live Oak 3 Scrub Maritime Forest Salt Marsh TOWN OF DUCK VEGETATION PLANTING GUIDELINES Vegetative Zone Plant List Botanical Name Taxodium distichum Tilia cordata Zelkova serrata Zelkova serrata “Village Green” Small Trees (6-8’ AT PLANTING Pioneer Common Name Bald Cypress Little Leaf Linden (all cultivars) Japanese Zelkova “Village Green Zelkova” CANOPY COVER = 200 Square Feet) Acer buergeranum Acer campestre Acer griseun Amelanchier Canadensis* Betula nigra (dwarf cultivar) Carpinus betulus Carpinus caroliniana* Cercis canandensis Chioanthus virginicus Cornus florida* Cornus kousa Cornus mas Cornus stricta* Crataegus phaenopyrum Diospyros virginiana* Halesia Carolina Ilex opaca Koelreuteria paniculata Lagerstroemia Magnolia x soulangeana Magnolia stellata Magnolia virginiana* Malus Osmanthus americanus* Ostrya virginiana Oxydendrum arboretum Persea borbonia* Pinus nigra Prunus carolinia* Trident Maple Hedge Maple Paperbark Maple Serviceberry River Birch (dwarf) European Hornbeam/Ironwood American Hornbeam Red Bud White Fringe Tree Flowering Dogwood Kousa Dogwood Cornelian Cherry Swamp Dogwood Washington Hawthorn Persimmon Carolina Silverbell American Holly Golden Rain Tree Crape Myrtle (all except Dwarf and Semi-Dwarf) Saucer Magnolia Star Magnolia Sweet Bay Magnolia Flowering Crabapple (all species and cultivars) Devilwood American Hophornbean Sourwood Redbay Austrian Pine Carolina Laurel Cherry 4 Scrub Maritime Forest Salt Marsh TOWN OF DUCK VEGETATION PLANTING GUIDELINES Vegetative Zone Plant List Botanical Name Prunus serrulata Prunus subhirtella pendula Prunus x yedoensis Pyrus calleryana “Aristocrat” Quercus acuta Quercus robur “Fastigiata” Sophora japonica Stewartia monadelpha Styrax japonicus Vaccinium arboretum* Shrubs Amorpha fruticosa* Aronia arbutifolia* Baccharis halimifolia Borrichia frutescens* Callicarpa Americana* Cephalanthus occidentalis* Clethra alnifolia* Elaeagnus pungens Euonymus japonicus Ilex glabra* Ilex vomitoria* Itea virginica* Iva frutescens* Leucothoe axillaris* Lyonia lucida* Myrica cerifera* Myrica pensylvanica* Nerium Oleander Pittosporum Tobira Raphiolepis umbellate Rhododendron atlanticum* Rhus copallina* Ruscus asculeatus Sabal minor* Pioneer Common Name All Cultivars Weeping Cherry All Cultivars Approved Callery Pear Cultivars Japanese Evergreen Oak Pyramidal English Oak Pagoda Tree (all cultivars) Tall Stewartia Japanese Snowbell Tree Sparkleberry Indigo-bush Red Chokeberry Eastern Baccharis Sea Ox-eye Beautyberry Buttonbush Sweet Pepperbush Thorny Elaeagnus Evergreen Euonymus Inkberry Yaupon Holly Virginia Willow (Sweetspire) Marsh elder Coastal Leucothoe Fetterbush Southern Waxmyrtle Northern Bayberry Oleander Pittosporum Indian Hawthorne Dwarf Azalea Shining Sumac Butchersbroom Dwarf Palmetto 5 Scrub Maritime Forest Salt Marsh TOWN OF DUCK VEGETATION PLANTING GUIDELINES Vegetative Zone Plant List Botanical Name Salix caroliniana* Tamarix gallica Vaccinium corymbosum* Ornamental Grasses Andropogon glomeratus Andropogon ternaries Cortaderia selloana Miscanthus sinensis Muhlenbergia capillaris Panicum amarum Panicum virgatum Grasses and Forbs (100 sprigs = 100 square feet) Ammophila breviligulata Uniola paniculata Panicum amarulum Panicum amarum Andropogon littoralis Iva imbricata Croton punctatus Hydrocotyle bonariensis Solidago sempervirens Spartina Patens Pioneer Common Name Swamp Willow Saltcedar Highbush Blueberry Brushy Bluestem Splitbeard Bluestem Pampas Grass Maiden Grass Purple Muhly Grass Sea Beach Panicum Switchgrass American Beach Grass Seaoats Panicgrass Bitter Panicum Seacoast Bluestem Marsh-elder Silverleaf croton Largeleaf Pennywort Seaside goldenrod Marshhay cordgrass *Native Plants to Dare County (existed since before the arrival of the colonists) 6 Scrub Maritime Forest Salt Marsh Botanical Name Acer negundo Acer saccarinum Ailanthus altissima Albizia julibrissin Betula papyrifera Catalpa bignonoides Cedrus deodora Ginkgo biloba Laburnum anagyroides Magnolia grandiflora* Melia azedarach Seed Morus species Paulownia tomentosa Pinus sylvestris Pinus thunbergi Populus alba Populus deltoids Populus nigra Prunus seroina Pyrus calleryana “Bradford” Salix Ulmus Americana Ulmus pumila UNDESIRABLE TREE SPECIES Common Name Box Elder Silver Maple Tree of Heaven Mimosa Paper Birch Southern Catalpa Deodora Cedar Ginko (female plant) Golden Chain Tree Southern Magnolia Chinaberry Mulberries Empress Tree Scotch Pine Japanese Black Pine White or Silver Poplar Eastern Cottonwood Lombardy Poplar Black Cherry Bradford Pear Willow American Elm Siberian Elm Problem Weak wood, short lived, insects Weak wood, insects, shallow roots, prolific seeding Offensive odor (male), poor landscape qualities Mimosa Wilt Disease Insects Messy flowers Heat stress decline Offensive fruit odor Environmental stress Shallow roots, seed pods Weak wood, suckers Objectionable fruit Seed pods Environmental stress (heat, poor drainage, insects) Insects Weak wood, diseases Weak wood, extensive root system, prolific seeding Extensive root system, short lived, diseases Objectionable fruit Structural weakness Weak wood, roots Dutch Elm Disease Short lived, insects Reference List 1) Graetz, Karl E. Seacoast Plants of the Carolinas. Raleigh, North Carolina: Sea Grant Publication UNC-SG-73-06 2) Duncan, Wilbur H. and Marion B. Seaside Plants of the Gulf and Atlantic Coasts. Washington, D.C., Smithsonian Institution 1987. 3) http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/index.html 4) http://edis.ifas.ufl.edu/ 7
© Copyright 2025 Paperzz