AcknowledgmentsIntroductionAcer buergerianum, Trident MapleAcer campestre, Hedge MapleAcer ginnala, Amur MapleAcer griseum, Paperbark MapleAcer palmatum, Green Japanese MapleAcer palmatum var. atropurpureum ''Bloodgood'', Bloodgood Japanese MapleAcer palmatum var. dissectum ''Crimson Queen'', Crimson Queen Japanese MapleAcer palmatum var. dissectum ''Viridis'', Green Laceleaf Japanese MapleAesculus parviflora, Bottlebrush BuckeyeAmelanchier arborea, Downy ServiceberryAmelanchier canadensis, Shadblow ServiceberryBerberis thunbergii var. atropurpurea, Japanese BarberryBetula nigra ''Heritage'', River BirchBuddleia davidii, Butterfly BushBuxus microphylla, Littleleaf BoxwoodBuxus var. koreana x Buxus sempervirens, Sheridan Hybrid BoxwoodCalycinthus floridus, Carolina AllspiceCaryopteris x clandonensis, Blue-mist SpireaCercidiphyllum japonicum, KatsuratrreeCercis canadensis, Eastern RedbudChaenomeles speciosa cultivars, Flowering QuinceChamaecyparis pisifera, Japanese FalsecypressChionanthus virginicus, White FringetreeClethra alnifolia, SummersweetCornus alba, C. sericea, Tatarian Dogwood, Redosier DogwoodCornus florida, Flowering DogwoodCornus kousa, Kousa DogwoodCornus mas, Corneliancherry DogwoodCotinus coggygria, Common SmoketreeCrataegus phaenopyrum, Washington Hawthorn ''Vaughn''Crataegus viridis ''Winter King'', Green HawthornDeutzia gracilis, Slender DeutziaEuonymus alatus ''Compactus'', Burning BushForsythia x intermedia, Common ForsythiaFothergilla gardenii, F. major, Dwarf Fothergilla; Large FothergillaHalesia tetraptera (H. carolina), Carolina SilverbellHamamelis x intermedia ''Arnold Promise'', WitchhazelHamamelis virginiana, Common WitchhazelHibiscus syriacus, Rose-of-SharonHydrangea arborescens ''Annabelle'', Smooth HydrangeaHydrangea macrophylla, Bigleaf HydrangeaHydrangea paniculata ''Grandiflora'', Standard Peegee HydrangeaHydrangea quercifolia, Oakleaf HydrangeaIlex x attenuata ''Fosteri'', Foster''s HollyIlex x meserveae, Meserve HolliesIlex verticillata, Winterberry HollyJuniperus chinensis, Chinese JuniperKerria japonica, Japanese KerriaKoelreuteria paniculata, Goldenrain TreeLespedeza thunbergii, BushcloverMagnolia x soulangiana, Saucer MagnoliaMagnolia stellata, Star MagnoliaMagnolia virginiana, Sweetbay Magnolia, Swamp MagnoliaMalus cultivars, Flowering CrabMalus sargentii, Sargent CrabOxydendron arboreum, SourwoodPhiladelphus hybrids, MockorangePicea pungens ''Hoopsii'', Colorado SprucePicea pungens ''Glauca Globosa'', Globe Blue SprucePicea pungens ''Glauca Globosa'' StandardPinus densiflora ''Umbraculifera'', Umbrella PinePinus mugo, Mugo PinePinus strobus ''Nana'' (standard), Dwarf Eastern White PinePrunus laurocersus ''Otto Luyken'', ''Schipkaensis'', Common Cherrylaurel, English LaurelPrunus persica, Dwarf Ornamental PeachPrunus serrulata ''Kwanzan'', ''Shogetsu'', Japanese CherryPrunus subhirtella ''Autumnalis'', Autumn CherryPrunus subhirtella ''Pendula'', Higan CherryPrunus x yedoensis, Yoshino CherryPyrus calleryana ''Aristocrat'', Aristocrat PearEvergreen Azalea HybridsRhododendron catawbiense ''Roseum Elegans'', Catawba RhododendronDeciduous Azalea hybridsRhododendron ''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 albaRosa rugosa ''Frau Dagmar Hartopp''Rosa wichuraiana ''Leontine Gervais''Sorbus americana, S. aucuparia, American and European MountainashSpiraea japonica, Japanese SpireaSpiraea nipponica ''Snowmound'', Snowmound SpireaSpiraea thunbergii ''Ogon Mellow Yellow''Syringa meyeri and S. m. ''Palibin'', Meyer Lilac and ''Palibin'' LilacSyringa meyeri ''Palibin'', ''Palibin'' Standard LilacSyringa reticulata, Japanese Tree LilacTaxus x media ''Densiformis'', English-Japanese YewTaxus x media ''Hicksii'', Hicksii YewUlmus parvifolia, Lacebark ElmViburnum utile ''Eskimo'', Service ViburnumViburnum carlesii, V. x juddii, Koreansp
