| Cedrus atlantica 'Glauca' | Blue Atlas Cedar | | Zone 6 & 7 Plants plus shrubs | Tree > 30 feet, Evergreen, Full sun, Zone 6b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Ilex x meserveae | Blue Holly; Meserve Hybrid Holly | | Broad-leaved Evergreens | Shrub 4 to 8 feet, Evergreen, Full sun, Part shade, Shade, Zone 5a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Caryopteris x clandonensis | Bluebeard, Blue-Mist Shrub | | Flowering Landscape Shrubs | Shrub < 4 feet, Groundcover, Deciduous, Full sun, Zone 5b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Hydrangea paniculata Ilvobo 'Bobo'™ | Bobo Panicle Hydrangea | | Hydrangea paniculata Collection (all of Cornell campus), Hydrangea Paniculata @ Ag Quad and Warren Hall; Hydrangea paniculata Collection (all of Cornell campus), Hydrangea Paniculata @ Botanic Gardens; Hydrangea paniculata Collection (all of Cornell campus), Hydrangea Paniculata @ Arboretum and Zucker | Shrub < 4 feet, Full sun, Part shade, Shade, Zone 3b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Hydrangea paniculata 'Bombshell' | Bombshell Panicle Hydrangea | | Hydrangea paniculata Collection (all of Cornell campus), Hydrangea Paniculata @ Ag Quad and Warren Hall; Hydrangea paniculata Collection (all of Cornell campus), Hydrangea Paniculata @ Arboretum and Zucker; Hydrangea paniculata Collection (all of Cornell campus), Hydrangea Paniculata @ Botanic Gardens | Shrub < 4 feet, Deciduous, Full sun, Part shade, Zone 3b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Forsythia x intermedia | Border Forsythia | | Spring Flowering Trees and Shrubs, Zone 6 & 7 Plants plus shrubs | Shrub 4 to 8 feet, Shrub < 4 feet, Groundcover, Deciduous, Full sun, Zone 5b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Ligustrum obtusifolium | Border Privet | | Native and Invasive Plants | Shrub > 8 feet, Deciduous, Full sun, Part shade, Zone 3a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Parthenocissus tricuspidata | Boston Ivy | | High pH | Vine, Deciduous, Full sun, Part shade, Shade, Zone 4b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Aesculus parviflora | Bottlebrush Buckeye | | Flowering Landscape Shrubs | Shrub 4 to 8 feet, Deciduous, Full sun, Part shade, Zone 5a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Actinidia arguta | Bower Actinidia | | | Vine, Deciduous, Full sun, Part shade, Zone 3a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Acer negundo | Boxelder | | Wet Site Plants | Tree > 30 feet, Deciduous, Full sun, Part shade, Zone 3a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Pinus aristata | Bristlecone Pine | | Pines et. al. | Tree < 30 feet, Evergreen, Full sun, Zone 4a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Hydrangea paniculata 'Brussels Lace' | Brussels Lace Panicle Hydrangea | | Hydrangea paniculata Collection (all of Cornell campus), Hydrangea Paniculata @ Botanic Gardens; Hydrangea paniculata Collection (all of Cornell campus), Hydrangea paniculata @ Friedman Wrestling Center | Shrub 4 to 8 feet, Full sun, Part shade, Shade, Zone 3b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Spiraea x bumalda | Bumald Spirea | | None Listed | Deciduous, Zone |
| Quercus macrocarpa | Bur Oak; Mossycup Oak | | Oaks | Tree > 30 feet, Deciduous, Full sun, Zone 3a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0), Tolerates salty soil |
| Viburnum x burkwoodii | Burkwood Viburnum | | | Shrub 4 to 8 feet, Deciduous, Full sun, Part shade, Zone 5b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Buddleia davidii | Butterfly-bush | | Flowering Landscape Shrubs | Shrub > 8 feet, Deciduous, Full sun, Zone 5b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Juglans cinerea | Butternut | | Birch, Larch, Magnolias and Nut Trees at Arboretum | Tree > 30 feet, Deciduous, Full sun, Zone 3a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Cephalanthus occidentalis | Buttonbush | | Wet Site Plants | Shrub 4 to 8 feet, Deciduous, Full sun, Part shade, Zone 3b, Can tolerate acid to neutral soil (pH 5.0 to 7.4), Tolerates salt spray, Tolerates salty soil |
| Pyrus calleryana | Callery Pear | | Big Trees in Winter, Dry Site Plants | Tree > 30 feet, Deciduous, Full sun, Zone 5a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0), Tolerates salty soil |