DESIGN!!GUIDELINES!!!!!

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1 DESIGNGUIDELINES LANDSCAPE PLANTING SEE GUILFORD COUNTY SCHOOLS NORTH CAROLINA G GUILFORD GREEN GUIDE PAGES 83, , 140, , FOR ADDITIONAL INFORMATION. GENERAL Landscape planting offers a cost effective means to enhance overall project appearance, provide privacy at outdoor learning areas and provide summer sun shading and winter wind breaks. All species should be of hearty, durable variety and require minimum maintenance. Do not use plants with thorns, or toxic foliage, flowers or fruit. At renovation/addition projects, the Designer shall require the Contractor to isolate and protect existing planting not involved in the new construction. Areas of protection will be shown on the contract documents. When mulching slope plantings in low visibility, for outlying areas, triple shredded hardwood mulch can be used to keep down costs. Do not use pine straw. When slopes are in high visibility areas or slopes are greater than 3:1, landscape with trees and/or shrubs and/or a non-mow seeding such as Lespedeza or Love Grass. Slopes of lesser grade can be seeded with fescue (if irrigated) to get them established. See Section Contractor shall provide tree/shrub protection fence that is out at the drip line of the tree. During the one-year warranty period, the contractor shall be responsible for all watering of trees and shrubs to get them through any periods of limited rainfall and/or take responsibility to replace those that perish without damaging existing grass. Contractor will use GCS water. If mandatory restrictions occur, then an appropriate change order will be issued. PRODUCTS A. TREE, SHRUB AND GROUND COVER PLANTING: Drought-tolerant species shall be specified where possible. B. IMPORTED FIRE ANT CONTROL: In order to limit importation of Fire Ants, GCS prefers that local plants be used. However, whether local or imported from outside the area, plants shall be accompanied by a certificate stating certified under all applicable state and federal quarantines. This shall be stated at the pre-landscape meeting. In addition, the specifications shall require that the Design Consultant shall inspect each shipment of plant materials for the presence of imported fire ants. C. Mulch for trees and shrubs is specified as follows: a. Raw Material - Mulch material should be comprised of at least 80% hardwoods, with moisture content of 30% or less, and pass through a maximum screen size Page 1 of 5

2 DESIGNGUIDELINES of 1 5/8". Raw material should contain no yard waste, construction debris, or any other extraneous material. b. Mulch Colorant - Should be an iron oxide based colorant, and must be applied with "fogging" or spray technology (Becker Underwood Sahara System or equivalent) as opposed to an "immersion" or bath system. c. Product Performance - Mulch supplier must present documentation showing colorfastness of finished material of at least 2 years without significant fading. EXECUTION A. TREE, SHRUB, AND GROUND COVER PLANTING: shall have 8 in. minimum deep plant beds with incorporation of 2 in. of decomposed organic matter. All plant beds shall receive an application of pre-emergent herbicide before area is mulched. All trees and shrubs shall be mulched with a minimum of 3 in. of brown-dyed mulch. B. Where slopes exceed 1 in 3 it is recommended ground cover such as Parson Juniper be planted and mulched with a minimum of 3 in. (after compaction) of triple shredded hardwood mulch or a non-mow vegetation (i.e., weeping lovegrass). C. All shade trees shall be placed in a manner so that mature size limbs will not overhang buildings or power lines. At driveway and parking areas all trees shall be at height at installation that they will not obstruct motorists line of sight. D. All shrubs placed near buildings shall be selected from varieties so that at mature height the planting will not overgrow or obstruct vision from windows. At driveway and parking areas shrubs shall be selected from varieties so that at mature height the planting will stay below the motorists line of sight. E. All trees shall be stabilized by using 3 stakes and guy wires. Attach guy wires to tree using fabric straps. Locate wood stakes inside of mulch bed to avoid conflict with lawn mowers. Contractor to be responsible for removal of stakes, straps and guys after one year. F. Potted pines planted for slope stabilization need to be loosely staked so that the stake can remain on them at least two years. Use tree straps only, no string or wire. G. Shrubs in beds adjacent to curbs need to be planted at least 3 feet from the edge of curb so buses/cars do not run over them passing each other in a narrow drive. H. Existing vegetation shall be utilized in the tree count as much as possible. RECOMMENDED PLANT MATERIALS LIST Botanical (Scientific) Name Common Name Botanical (Scientific) Name Common Name C A N O P Y T R E E S Acer paltanoides Norway Maple Picea glauce White Spruce Acer rubrum Red Maple Picea pungens Colorado Blue Spruce Page 2 of 5

3 DESIGNGUIDELINES Acer saccharinum Silver Maple Pinus echinata Shortleaf Pine Acer saccharum Sugar Maple Pinus nigra Austrian Pine Aesculus hippocastanum Common Horse Chestnut Pinus strobus White Pine Carpinus betulus Europea Hornbeam Pinus sylvestris Scotch Pine Carpinus caroliniana American Hornbeam Pinus taeda Loblolly Pine Carya cordiformis Bitternut Hickory Pinus thunbergiana Japanese Black Pine Carya illinoensis Pecan Tree Pinus virginiana Virginia Pine Carya ovata Shagbark Hickory Platanus occidentalis Sycamore Carya tomentosa White Hickory Populus alba White Poplar Catalpa speciosa Catalpa Populus deltoides Eastern Cottonwood Cedrus atlantica Atlas Cedar Prunus serotina Black Cherry Cedrus deodara Deodar Cedar Quercus alba White Oak Celtis occidentalis Common Hackberry Quercus coccinea Scarlet Oak Cercidiphyllum japonicum Katsuratree Quercus falcata Southern Red Oak Chamaecyparis obtusa Hinoki Falsecypress Quercus imbricaria Shingle Oak Cladrastis lutea Yellowwood Quercus laurifolia Laurel Oak Cupressocyparis leylandii Leyland Cypress Quercus nigra Water Oak Fagus grandifolia American Beech Quercus palustris Pin Oak Fagus sylvatica European Beech Quercus phellos Willow Oak Fraxinus americana White Ash Quercus prinus Chestnut Oak Fraxinus pennsylvanica Green Ash Quercus rubra Red Oak Ginkgo biloba (male) Ginkgo Quercus shumardii Shummard Oak Gleditsia triacanthos Thornless Honeylocust Quercus stellata Post Oak Ilex opaca American Holly Quercus velutina Black Oak Juglans cinerea Butternut Quercus virginiana Live Oak Juglans nigra Black Walnut Robinia pseudoacacia Black Locust Juniperus virginiana Eastern Redcedar Sassafras albidum Common Sassafras Liquidambar styraciflua Sweetgum Taxodium distichum Bald Cypress Liriodendron tulipifera Tuliptree Thuja occidentalis American Arborvitae Magnolia acuminata Cucumbertree Magnolia Tilia americana American Linden Magnolia grandiflora Southern Magnolia Tilia cordata Littleleaf Linden Metasequoia glyptostroboides Dawn Redwood Tilia tomentosa Silver Linden Morus alba Common Mulberry Tsuga canadensis Canadian Hemlock Morus rubra Red Mulberry Tsuga caroliniana Carolina Hemlock Nyssa sylvatica Tupelo Black Gum Ulmus americana American Elm Paulownia tomentosa Royal Paulownia Ulmus parviflora Chinese Elm Picea abies Norway Spruce Zelkova serrata Japanese Zelkova U N D E R S T O R Y T R E E S Acer palmatum Japanese Maple Magnolia virginiana Sweetbay Magnolia Aesculus glabra Ohio Buckeye Magnolia x soulangiana Saucer Magnolia Ailanthus altissima Tree of Heaven Malus spp. Crabapple Albizia julibrissin Mimosa Ostrya virginiana American Hophornbeam or Ironwood Amelanchier arborea Downy Serviceberry Oxydendrum arboreum Sourwood Betula nigra River Birch Pinus mugo Mugo Pine Page 3 of 5

4 DESIGNGUIDELINES Cercis canadensis Eastern Redbud Pinus virginiana Virginia (Scrub) Pine Chionanthus virginicus Fringetree Pistacia chinensis Chinese Pistache Cornus florida Flowering Dogwood Platycladus Oriental Arborvitae orientalis Cornus kousa Kousa Dogwood Prunus caroliniana Carolian Cherry Laurel Cotinus coggygria Smoketree Prunus cerasifera Cherry Plum Crataegus phaenopyrum Washington Hawthorn Prunus persica Common Peach Crataegus viridis Green Hawthorn Prunus serrulata Oriental Cherry Elaeagnus angustifolia Russian Olive Prunus subhirtella Higon Cherry Eriobotrya japonica Loquat Prunus x yedoensis Yoshino Cherry Halesia carolina Carolina Silverbell Quercus acutissima Sawtooth Oak Ilex x attenuata Foster Foster Holly Quercus lyrata Overcup Oak Ilex cassine Dahoon Quercus myrsinifolia Chinese Evergreen Oak Ilex vomitoria 'Pendula' Weeping Yaupon Holly Salix babylonica Weeping Willow Juniperus chinensis 'Hetzii' Chinese Juniper Sorbus aucuparia European Mountain Ash Koelreuteria paniculata Golden Raintree Stewartia ovata Mountain Stewartia Lagerstroemia indica Crepe Myrtle Stewartia pseudocamellia Japenese Stewartia Maclura pomifera Osage-orange Styrax japonicus Japanese Snowbell Magnolia stellata Star Magnolia Syringa reticulata Japanese Tree Liliac Thuja orientalis Oriental Arborvitae L A R G E S H R U B S Agarista populifolia Florida Leucothoe Illicium floridanum Florida Anise Tree (Leucothoe populifolia) Buddleia davidii Butterfly Buse Ligustrum amurense Amur Privet Buxus sempervirens Common Boxwood Lonicera fragrantissima Winter Honeysuckle Camellia japonica Common Camellia Magnolia virginiana Sweetbay Magnolia Camellia sasanqua Sasanqua Camellia Michelia figo Banana Shrub Cotoneaster salicfolius Willowleaf Cotoneaster Myrica cerifera Wax Myrtle Cytisus scoparius Scotch Broom Osmanthus heterophllus Holly Olive Deutzia scabra Fuzzy Deutzia Photinia x fraseri Red Tip Photinia Elaeagnus pungens Thorny Elaeagnus Photinia serrulata Chinese Photinia Euonymus alatus Winged Euonymus Pittosporum tobira Japanese Pittosporum Exochorda racemosa Common Pearlbush Prunus laurocerasus English Laurel Forsythia x intermedia Forsythia Pyracantha coccinea Scarlet Firethorn Hammamelis virginiana Common Witch Hazel Rhododendron carolinianum Carolina Rhododendron Hydrangea paniculata Panicle Hydrangea Rhododendron catawbiense Catawba Rhododendron Ilex aquifolium English Holly Symplocos paniculata Sapphire Berry Ilex cornuta Chinese Holly Syringa vulgaris Common Lilac Ilex crenata Japanese Holly Vibernum x burkwoodii Burkwood Vibernum Ilex decidua Possom Haw Vibernum opulus Cranberry Bush Vibernum rhytidophyllum Leatherleaf Vibernum Vitex negundo Chastetree M E D I U M SHRUBS Aronia arbutifolia Red Chokeberry Ilex glabra Inkberry Aucuba japonica Aucuba Ilex verticillata Winterberry Berberis julianae Wintergreen Barberry Juniperus communis Common Juniper Buxus sempervirens American Boxwood Kalmia latifolia Mountain Laurel Callicarpa americana American Beautyberry Leucothoe fontanesiana Drooping Leuthoe Calycanthus floridus Carolina Allspice Mahonia aquifolium Oregon Grapeholly Chaenomeles speciosa Flowering Quince Mahonia bealei Leatherleaf Mahonia Chamecyparis pisifera Sawara Falsecypress Nandina domestica Nandina Page 4 of 5

5 DESIGNGUIDELINES Cotoneaster divaricatus Spreading Cotoneaster Rhododendron sp. Azalea Cotoneaster lucidus Hedge Cotoneaster Spiraea cantoniensis Reeves Spirea Cotoneaster multiflorus Many-flowered Cotoneaster Spiraea nipponica Snowmound Nippon Euonymus alatus 'compacta' Winged Euonymus 'Snowmound' Spirea Euonymus kiautschovicus Spreading Euonymus Syringa microphylla Little Leaf Lilac Fothergilla major Larger Fathergilla Viburnum acerifolia Mapleleaf Viburnum Warranty: See Section for warranty information. END OF Page 5 of 5