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Gwinnett County Unincorporated
City Zoning Code

Appendix Section 7.0

Buffers, Landscaping, and Tree Protection Landscape Strips33

Type 1: 5' Landscape Strip

Type 2: 10' Landscape Strip

Type 3: 10' Landscape Strip with 4' High Masonry Screening Wall

Type 4: 5' Landscape Strip with 6' High Masonry Screening Wall

Type 5: 10' Masonry Screening Wall

Small Tree Species List

Scientific name Common Name
Native
Evergreen
Street Tree
Parking
Lot Tree
Max Ht. (ft.)
Spread (ft.)
Canopy (SF)
Acer buergerianum Trident Maple S 25 20 314
Acer griseum Paperbak Maple 25 20 314
Acer palmatum var. atropurpureum 'Bloodgood' Japanese Maple 'Bloodgood' S 20 20 314
Amelanchier arborea Downy Serviceberry N S 25 20 314
Carpinus caroliniana Ironwood/American Hornbeam N 25 25 491
Cercis canadensis 'Pauline Lily' Pauline Lily Redbud N S 25 25 491
Cercis canadensis 'Texensis' Texas Redbud N S 25 25 491
Cercis canadensis 'The Rising Sun' The Rising Sun Redbud N S 25 25 491
Chionanthus virginicus Fringe Tree N S 25 25 491
Cornus alternifolia Alternate Leaf Dogwood N S 20 20 314
Cornus florida Flowering Dogwood N S 20 20 314
Cornus kousa Chinese/ Kousa Dogwood S 20 20 314
Cotinus obovatus American Smoketree N 20 15 177
Crataegus spathulata Littlehip Hawthorn 20 20 314
Crataegus viridis 'Winter King' Green Hawthorne S 25 25 491
Hamamelis virginiana Witch-hazel N 20 15 177
Ilex x attenuata 'Fosteri' Foster Holly E 25 10 79
Ilex x attenuata 'Savannah' Savannah Holly E 25 10 79
Ilex decidua Deciduous Holly/Possum Haw N 15 10 79
Ilex latifolia Lusterleaf Holly E 25 20 314
Ilex x 'Nellie R. Stevens' Nellie R. Stevens Holly E 30 10 79
Ilex verticillata Winterberry N 15 10 79
Ilex vomitoria Yaupon Holly N E 20 10 79
Magnolia stellata Star Magnolia 20 15 177
Malus angustifolia Narrow-Leaf Crabapple N 25 20 314
Myrica cerifera Wax Myrtle N E 25 20 314
Parrotia persica Persian Parrotia 30 20 314
Prunus 'Accolade' Accolade Flowering Cherry 20 15 177
Quercus georgiana Georgia Oak N S 20 15 177
Rhamnus alaternus Italian Buckthorn E 20 10 79
Rhus glabra or typhina Smooth or Staghorn Sumac N 15 10 79
Tilia cordata 'Halka' Summer Sprite Littleleaf Linden P 20 10 79
Zelkova serrata 'JFS-KW1' City Sprite Japanese Zelkova S P 25 20 314
Zelkova serrata 'Schmidtlow' Wireless Japanese Zelkova S P 25 35 962

 

Medium Tree Species List

Scientific name Common Name
Native
Evergreen
Street Tree
Parking
Lot Tree
Max Ht. (ft.)
Spread (ft.)
Canopy (SF)
Acer barbatum Southern Sugar Maple N P 40 30 707
Acer leucoderme Chalk Maple N 40 20 314
Acer rubrum, small cultivars Red Maple, dwarf varieties N P 50 35 962
Acer truncatum Shantung or Painted Maple 35 25 491
Betula nigra 'Dura Heat' Dura Heat' River Birch N 40 25 491
Carpinus caroliniana American Hornbeam N 40 20 314
Celtis tenuifolia Georgia Hackberry 35 20 314
Chamaecyparis thyodies Atlantic Whitecedar N E 30 20 314
Cladrastis lutea American Yellowwood N S 50 40 1,256
Fagus sylvatica Purple Beech 50 40 1,256
Frangula caroliniana Carolina Buckthorn N 40 20 314
Gordonia lasianthus Loblolly Bay N E 35 25 875
Halesia carolina/tetraptera Carolina Silverbell N 40 30 707
Ilex latifolia Lusterleaf Holly E 40 20 314
Ilex opaca American Holly N E 30 15 177
Juniperus virginiana Eastern Red Cedar N E P 50 10 79
Magnolia grandiflora 'Little Gem' Little Gem Magnolia E 35 12 113
Magnolia grandiflora 'Samuel Sommer' Samuel Sommer Magnolia E P 40 20 314
Magnolia x soulangiana (Tree Form) Saucer Magnolia S 30 25 491
Nyssa sylvatica 'Red Rage' Red Rage Black Gum N P 50 25 491
Ostrya virginiana Eastern Hophornbeam N S 40 25 491
Oxydendron arboreum Sourwood N S 30 20 314
Pinus nigra Austrian Pine E 30 20 314
Platanus x acerifolia London Planetree S P 40 40 1256
Prunus serrulata Japanese Flowering Cherry S 30 20 314
Prunus subhirtella 'Atumnalis' Autumn Cherry S 30 30 707
Prunus x yedoensis Yoshino Flowering Cherry S 50 30 707
Quercus lyrata Overcup Oak N P 45 30 707
Quercus stellata Post Oak 50 40 1256
Sassafras albidum Sassafras N 30 15 177
Styrax japonica Japanese Snowbell 30 15 177
Thuja occidentalis Eastern Arborvitae E 50 10 79
Ulmus parvifolia 'Athena' Athena Chinese Elm S P 30 35 962

 

Large Tree Species List

Scientific name Common Name
Native
Evergreen
Street Tree
Parking
Lot Tree
Max Ht. (ft.)
Spread (ft.)
Canopy (SF)
Acer barbatum cultivars Florida Maple N P 60 35 962
Acer saccharum cultivars Sugar Maple 'Legacy' N P 50 35 962
Betula nigra cultivars River Birch 'Dura Heat' or 'Heritage' N 50 40 1,256
Carya cordiformis Bitternut Hickory N P 100 60 2,826
Carya glabra Pignut Hickory N S P 100 60 2,826
Carya ovata Shagbark Hickory N P 80 40 1,256
Carya pallida Sand Hickory N P 90 30 707
Carya tormentosa Mockernut Hickory N S P 100 60 2,826
Cedrus deodara Deodar Cedar E 70 30 707
Celtis laevigata Sugarberry P 70 50 1,963
Celtis occidentalis Hackberry S 50 40 1,256
Celtis sinensis Chinese Hackberry S 60 40 1,256
Cercidiphyllum japonicum Katsura Tree P 70 45 1,590
Cryptomeria japonica Japanese Cryptomeria E 60 20 314
Fagus grandifolia American Beech N 70 40 1,256
Fraxinus pennsylvanica Green Ash N S 60 25 491
Ginkgo biloba (male) Gingko, Maidenhair Tree S P 50 30 707
Gleditsia triacanthos inermis Thornless Honeylocust N S P 70 50 1963
Liquidambar styraciflua 'Rotundiloba' Seedless Sweetgum N P 70 45 1,590
Liriodendron tulipifera Tulip Poplar N S P 90 40 1,256
Magnolia acuminata Cucumber Magnolia N 80 40 1,256
Magnolia grandiflora Southern Magnolia N E 80 40 1,256
Magnolia virginiana Sweetbay Magnolia N P 60 30 707
Metasequoia glyptostroboides Dawn Redwood 80 25 491
Nyssa aquatica Swamp Tupelo N 70 40 1,256
Nyssa sylvatica Black Gum N P 80 45 1,590
Pinus echinata Shortleaf Pine N E P 100 25 491
Pinus taeda Loblolly Pine N E P 100 25 491
Pinus virginiana Virginia Pine E P 70 20 314
Platanus occidentalis American Sycamore N S 100 45 1,590
Platanus x acerifolia London Planetree S P 100 80 5,024
Quercus acutissima Sawtooth Oak P 60 50 1,963
Quercus alba White Oak N 80 60 2,826
Quercus bicolor Swamp White Oak S 60 50 1,963
Quercus coccinea Scarlet Oak N P 70 45 1,590
Quercus falcata Southern Red Oak N S P 80 45 1,590
Quercus hemisphaerica 'Darlington' Darlington Oak N P 90 50 1,963
Quercus laurifolia Laurel Oak N P 80 50 1,963
Quercus macrocarpa Bur Oak 80 80 5,024
Quercus muehlenbergii 'Engelm' Chinkapin Oak S P 100 50 1,963
Quercus nigra Water Oak S P 80 40 1,256
Quercus nutallii Nuttal Oak N S P 80 40 1,256
Quercus palustris Pin Oak N S P 70 40 1,256
Quercus phellos Willow Oak N S P 60 35 962
Quercus prinus Chestnut Oak S 70 50 1,963
Quercus robur English Oak S P 60 50 1,963
Quercus rubra Northern Red Oak S P 75 45 1,590
Quercus shumardii Shumard Oak N S P 80 60 2,826
Quercus stellata Post Oak P 50 40 1,256
Quercus velutina Black Oak P 70 45 1,590
Taxodium distichum Bald Cypress N S P 70 25 491
Thuja plicata Western Arborvitea E P 70 25 491
Tilia americana Basswood S P 80 45 1,590
Tsuga canadensis Eastern Hemlock N E 60 35 962
Ulmus alata Winged Elm N P 80 40 1,256
Ulmus americana 'Princeton' Princeton American Elm S P 60 30 707
Ulmus parvifolia 'Emer II' P.P. #7552 Allée ® Chinese Elm S P 60 45 1590
Ulmus rubra Slippery Elm N P 80 40 1,256
Ulmus x 'Morton' (Accolade) Accolade Hybrid Elm S P 60 30 707
Ulmus x 'Pioneer' "Pioneer' Elm S P 60 50 1,963
Zelkova serrata Japanese Zelkova S P 70 50 1,963

 

Shrub List

Botanical Name Common Name
Native
Height (ft.)
(avg.)
Width (ft.)
(avg.)
Moist
Wet
Drought-
Tolerant
Adaptable
Soils
Abelia x 'Edward Goucher' Edward Goucher Abelia X 6 5 X X
Abelia x grandiflora 'Kaleidoscope' & 'Canyon Creek' Kaleidoscope or Canyon Creek Abelia X 2 3 X X
Abelia x grandiflora 'Confetti' Confetti Abelia 3—4 3—4 X X
Abelia x grandiflora 'Rose Creek' Rose Creek Abelia 2—3 3—4 X X
Aesculus parviflora Bottle brush Buckeye X 6—12 12 X
Agarista populifolia Doghobble, leucothoe X 8—12 6—8 X X
Amelanchier arborea Serviceberry X 10 6 X X X
Aucuba japonica Japanese Aucuba 3—10 3—6 X
Azalea 'Satsuki' Gumpo Azalea 2 3 X
Azalea 'Southern indica' Southern azalea 7—10 6 X
Azelea Encore Encore Azaleas 2.5—5 2—5 X X
Buxus microphylla Boxwood many varieties 3—20 3—20 X
Buxus sempervirens English boxwood 5—8 5 X
Callicarpa Americana Beautyberry X 3—6 3—5 X
Callicarpa americana American Beautyberry X 8 6
Calycanthus floridus Sweetshrub, Carolina allspice X 6—12 6 X X X
Camellia Camelia 3—15 4—8 X X
Caryopteris × clandonensis 'Worcester Gold' X 6 3 X X
Cephalotaxus harringtonii 'Prostrata' Creeping Japanese Plum Yew 3 4 X X
Chamaecyparis obtusa 'Nana Gracilis' Hinoki False Cypress 12 5 X
Chamaecyparis pisifera filifera 'Golden Charm' False Cypress 6 8 X
Chamaecyparis pisifera filifera 'Golden Mop' Threadleaf False Cypress 4 3 X
Chamaecyparis pisifera filifera 'Mops' Threadleaf False Cypress 5 5 X
Chamaecyparis pisifera filifera 'Sun Gold' Threadleaf False Cypress 8 6 X
Clethra alnifolia 'Hummingbird' Summersweet X 3 4 X X
Clethra alnifolia 'Ruby Spice' Summersweet X 8 8 X X
Clethra alnifolia 'Sixteen Candles' Summersweet X 6 6 X X
Cryptomeria japonica 'Elegans Aurea ' Japanese cedar 15 20 X
Cryptomeria japonica 'Nana Globus' Japanese cedar 5 5 X
Cryptomeria japonica 'Yoshino' Japanese cedar 30 25 X
Deutzia gracilis 'nikko' Dwarf Nikko deutzia 2 5 X
Distylium 'hybrid' 'Vintage Jade', 'Blue Cascade' and 'Emerald Heights Evergreen witch hazel 2—5 6 X X X
Edgeworthia chrysantha Paperbush 6 6 X
Fothergilla Mountain witch alder X 4—12 4—6 X
Fothergilla gardenii X 2 3 X
Fothergilla major American Witch-Alder X 4 6 X
Gardenia jasminoides Common gardenia 4—6 5 X
Gardenia jasminoides 'radicans' Creeping dwarf gardenia 3 5 X
Hamamelis viginiana Witch Hazel X 10—12 10—12 X X X
Hydrangea Hydrangea 3—8 3—6 X
Hypericum calycinum 'Hidcote' St. John's Wort 4 3 X X
Ilex cornuta 'Carissa Carissa Holly 4 4 X
Ilex cornuta 'Dwarf Burford' Dwarf Burford holly 15 6—8 X
Ilex crenata 'Helleri' Japanese Helleri holly 4 5 X
Ilex crenata 'Sky Pencil' Sky Pencil holly 10 3 X
Ilex crenata 'Soft Touch' Soft touch 3 3
Ilex verticillata Winterberry X 8 5
Ilex vomitoria 'Condeaux' Bordeaux Dwarf Yaupon Holly 3 3 X
Illicium floridanum, parviflorum Florida Anise X 6 6 X X
Illicium henryi Henryi, Star anise 7—15 8 X X
Itea virginica Virginia sweetspire X 2—4 4—6 X X X
Jasmine nudiflorum Winter jasmine 3—4 3—4 X X
Kerria japonica 'Pleniflora' Japanese Kerria, Japanese rose 5—10 6—10 X X X X
Leucothoe fontanesiana and axillaris Weeping leucothoe, variegated leucothoe X 3—6 3—6 X X
Lindera benzoin spicebush X 6—12 6—12 X X X X
Loropetalum 'Emerald snow' Emerald Snow Fringe Flower 3—4 3—4 X
Loropetalum 'Ruby' Fringe flower 4—6 4—6 X
Loropetalum chinense 'Chang Nian Hong' 'Ever Red' Fringe Flower 6 6 X
Loropetalum chinense 'Peack' Weeping Purple Pixie Fringe Flower 2 4 X
Loropetalum chinense 'Rubrum' Crimson fire' 2 3 X
Loropetalum chinense 'Shang-hi' compact Purple Diamond Fringe Flower 5 5 X
Myrica cerifera Wax Myrtle X 6—12 6—12 X X X X
Osmanthus fragrans Fragrant tea olive 10 8 X X
Osmanthus heterophyllus 'Goshiki' Goshiki' False Holly 5 4 X
Osmanthus x fortunei Fortune's tea olive 20 20 X X
Philadelphus coronarius x 'Natchez' Mock Orange 10 6 X X
Pieris japonica Japanese pieris 3—12 3—8 X
Pinus mugo Mugo Pine 3—5 3—5 X
Prunus caroliniana Cherry laurel X 12—20 8—10 X X
Rhododendron alabamense Alabama Azalea X 8 6 X
Rhododendron canescens Piedmont Azalea X 6 5 X X
Rhododendron flammeum
R. speciosum 		Oconee Azalea X 5 6
Rosa Shrub roses 3—6 3—5 X
Spiraea thunbergii Spirea - many cultivars 3—8 3—6 X
Thuja (standish x plicata) 'Green Giant' Arborvitae X 30+ 10 X X
Thuja occidentalis 'Emerald' Arborvitae 15 4 X X
Thuja occidentalis 'Golden Globe' Arborvitae 4 4 X X
Thuja occidentalis 'Pyramidalis' Arborvitae 20 6 X X
Vaccinium arboreum Sparkleberry X 10 6 X X
Vaccinium ashei Blueberry X 8 6 X X
Viburnum many varieties 5—10 5—10 X
Viburnum prunifolium Blackhaw Viburnum X 12 8 X
Viburnum rufidulum Rusty Blackhaw X 8 8 X
Weigela florida Weigela 3—20 3—12 X X

 

Prohibited Plant List

Georgia Exotic Pest Plant Council (GA-EPPC)
Botanical NameCommon NameGA-EPPC Threat Category
TREE
Pyrus calleryana Callery (Bradford) Pear 3
SHRUB
Berberis thunbergii Japanese Barberry 3
Celastrus orbiculatus Oriental Bittersweet 1 Alert
Elaeagnus pungens Thorny Olive 2
Elaeagnus umbellata Autumn Olive 1
Lantana camara Largeleaf Lantana 3
Ligustrum japonicum Japanese Privet 2
Ligustrum lucidum Glossy Privet 3
Ligustrum sinense Chinese Privet 1
Mahonia bealei Leatherleaf Mahonia 3
Nandina domestica Nandina or Sacred Bamboo 2
Spiraea japonica Japnese Spiraea 2
VINE/GROUNDCOVER
Amelopsis brevipedunculata Porcelain-berry 3
Hedera helix English Ivy 1
Vinca major Big Periwinkle 2
Vinca minor Common Periwinkle 2
GRASSES
Miscanthus sinensis Chinese Silvergrass 2
Eragrostis curvula Weeping Lovegrass 3
Liriope spicata Creeping Lily Turf 3
Category 1—Exotic plant that is a serious problem in Georgia natural areas by extensively invading native plant communities and displacing native species.
Category 1 Alert—Exotic plant that is not yet a serious problem in Georgia natural areas, but that has significant potential to become a serious problem.
Category 2—Exotic plant that is a moderate problem in Georgia natural areas through invading native plant communities and displacing native species, but to a lesser degree than Category 1 species.
Category 3—Exotic plant that is a minor problem in Georgia natural areas, or is not yet known to be a problem in Georgia but is known to be a problem in adjacent states.

 

(Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 54), 9-26-2023)

Footnotes:
--- (33) ---

Editor's note— Ord. No. UDOA2023-00002(GCID 2023-0604), Exh. A(§ 54), adopted Sept. 26, 2023 enacted provisions designated as Appendix 3.0, inasmuch as said Appendix already exists, said provisions have been redesignated as Appendix 7.0, at the discretion of the editor.