Acknowledgments; Introduction; Acer buergerianum, Trident Maple; Acer campestre, Hedge Maple; Acer ginnala, Amur Maple; Acer griseum, Paperbark Maple; Acer palmatum, Green Japanese Maple; Acer palmatum var. atropurpureum 'Bloodgood', Bloodgood Japanese Maple; Acer palmatum var. dissectum 'Crimson Queen', Crimson Queen Japanese Maple; Acer palmatum var. dissectum 'Viridis', Green Laceleaf Japanese Maple; Aesculus parviflora, Bottlebrush Buckeye; Amelanchier arborea, Downy Serviceberry; Amelanchier canadensis, Shadblow Serviceberry; Berberis thunbergii var. atropurpurea, Japanese Barberry; Betula nigra 'Heritage', River Birch; Buddleia davidii, Butterfly Bush; Buxus microphylla, Littleleaf Boxwood; Buxus var. koreana x Buxus sempervirens, Sheridan Hybrid Boxwood; Calycinthus floridus, Carolina Allspice; Caryopteris x clandonensis, Blue-mist Spirea; Cercidiphyllum japonicum, Katsuratrree; Cercis canadensis, Eastern Redbud; Chaenomeles speciosa cultivars, Flowering Quince; Chamaecyparis pisifera, Japanese Falsecypress; Chionanthus virginicus, White Fringetree; Clethra alnifolia, Summersweet; Cornus alba, C. sericea, Tatarian Dogwood, Redosier Dogwood; Cornus florida, Flowering Dogwood; Cornus kousa, Kousa Dogwood; Cornus mas, Corneliancherry Dogwood; Cotinus coggygria, Common Smoketree; Crataegus phaenopyrum, Washington Hawthorn 'Vaughn'; Crataegus viridis 'Winter King', Green Hawthorn; Deutzia gracilis, Slender Deutzia; Euonymus alatus 'Compactus', Burning Bush; Forsythia x intermedia, Common Forsythia; Fothergilla gardenii, F. major, Dwarf Fothergilla; Large Fothergilla; Halesia tetraptera (H. carolina), Carolina Silverbell; Hamamelis x intermedia 'Arnold Promise', Witchhazel; Hamamelis virginiana, Common Witchhazel; Hibiscus syriacus, Rose-of-Sharon; Hydrangea arborescens 'Annabelle', Smooth Hydrangea; Hydrangea macrophylla, Bigleaf Hydrangea; Hydrangea paniculata 'Grandiflora', Standard Peegee Hydrangea; Hydrangea quercifolia, Oakleaf Hydrangea; Ilex x attenuata 'Fosteri', Foster's Holly; Ilex x meserveae, Meserve Hollies; Ilex verticillata, Winterberry Holly; Juniperus chinensis, Chinese Juniper; Kerria japonica, Japanese Kerria; Koelreuteria paniculata, Goldenrain Tree; Lespedeza thunbergii, Bushclover; Magnolia x soulangiana, Saucer Magnolia; Magnolia stellata, Star Magnolia; Magnolia virginiana, Sweetbay Magnolia, Swamp Magnolia; Malus cultivars, Flowering Crab; Malus sargentii, Sargent Crab; Oxydendron arboreum, Sourwood; Philadelphus hybrids, Mockorange; Picea pungens 'Hoopsii', Colorado Spruce; Picea pungens 'Glauca Globosa', Globe Blue Spruce; Picea pungens 'Glauca Globosa' Standard; Pinus densiflora 'Umbraculifera', Umbrella Pine; Pinus mugo, Mugo Pine; Pinus strobus 'Nana' (standard), Dwarf Eastern White Pine; Prunus laurocersus 'Otto Luyken', 'Schipkaensis', Common Cherrylaurel, English Laurel; Prunus persica, Dwarf Ornamental Peach; Prunus serrulata 'Kwanzan', 'Shogetsu', Japanese Cherry; Prunus subhirtella 'Autumnalis', Autumn Cherry; Prunus subhirtella 'Pendula', Higan Cherry; Prunus x yedoensis, Yoshino Cherry; Pyrus calleryana 'Aristocrat', Aristocrat Pear; Evergreen Azalea Hybrids; Rhododendron catawbiense 'Roseum Elegans', Catawba Rhododendron; Deciduous Azalea hybrids; Rhododendron 'PJM'; Rosa x alba 'New Dawn'; Rosa x borboniana 'Zephirine Drouhin'; Rosa centifolia 'Fantin Latour'; Rosa, Climber 'Alchymist'; Rosa, Climber 'Sally Holmes'; Rosa, Climber 'Silver Moon'; Rosa, English Rose 'Lillian Austin'; Rosa floribunda 'Sun Flare'; Rosa, Modern Shrub 'Golden Wings'; Rosa rugosa alba; Rosa rugosa 'Frau Dagmar Hartopp'; Rosa wichuraiana 'Leontine Gervais'; Sorbus americana, S. aucuparia, American and European Mountainash; Spiraea japonica, Japanese Spirea; Spiraea nipponica 'Snowmound', Snowmound Spirea; Spiraea thunbergii 'Ogon Mellow Yellow'; Syringa meyeri and S. m. 'Palibin', Meyer Lilac and 'Palibin' Lilac; Syringa meyeri 'Palibin', 'Palibin' Standard Lilac; Syringa reticulata, Japanese Tree Lilac; Taxus x media 'Densiformis', English-Japanese Yew; Taxus x media 'Hicksii', Hicksii Yew; Ulmus parvifolia, Lacebark Elm; Viburnum utile 'Eskimo', Service Viburnum; Viburnum carlesii, V. x juddii, Koreanspice Viburnum and Judd Viburnum; Viburnum plicatum var. tomentosum, Doublefile Viburnum; Weigela florida 'Park Princess', Old-Fashioned Weigela; Resources; Index