Arborvitae: 6.5 to 8
Azalea: 4.5 to 5.5
Beautybush: 5.5 to 7
Balsam fir: 4.5 to 5.5
Beech: 5 to 7.5
Birch: 5 to 6.5
Boxwood: 6.8 to 7.5
Buddleia: 6 to 7
Burning Bush: 5.5 to 7.5
Camellia: 4.5 to 5.5
Chokeberry: 5 to 6.5
Clethra: 5 to 7.5
Corktree: 5.5 to 7.5
Cotoneaster: 6 to 7.5
Crabapple: 6 to 7.5
Cypress: 6 to 7
Deutzia: 6 to 7.5
Dogwood: 5 to 7.5
Elm: 6 to 7.5
Euonymus: 5.5 to 7.5
Fir: 5 to 6
Flowering Cherry: 6 to 7.5
Flowering Pear: 6 to 7.5
Flowering Plum: 6 to 7.5
Forsythia: 6.5 to 7
Fringe tree: 5 to 6
Hackberry: 6 to 7.5
Hawthorn: 6 to 7.5
Hemlock: 4.5 to 6
Holly: 4.5 to 5.5
Honeylocust: 6 to 8
Honeysuckle: 6 to 7.5
Hydrangea:
French: 4.5 to 8
Oakleaf: 6 to 7
PeeGee: 6 to 7.5
Juniper: 4.5 to 5.5
Kentucky Coffee Tree: 6 to 8
Kerria: 5.5 to 7
Lilac: 6.5 to 8
Linden: 6 to 7.5
London Plane Tree: 6 to 7.5
Magnolia: 5.5 to 7
Mockorange: 6 to 7
Mountain Ash: 6 to 7.5
Mountain Laurel: 4.5 to 6
Oak: 4.5 to 6
Peony: 6 to 8
Pieris Japonica: 4 to 5.5
Pine: 4 to 5.5
Pyracantha: 6 to 7.5
Quince: 6 to 7.5
Redbud: 6.5 to 7
Rhododendron: 4.5 to 5.5
Rose-of-Sharon: 6 to 7
Russian Olive: 6 to 7.5
Smoketree: 5.5 to 7.5
Spirea: 6 to 7
Spruce: 4 to 5.5
Sweet Gum: 5.5 to 7
Taxus (Yew): 6.5 to 7.5
Viburnum: 6 to 7
Witch Hazel: 5.5 to 7.5
Willow: 5.5 to 7.5
Wisteria: 6 to 7.5
Yucca: 5.5 to 7