OUTDOOR PLANTS

Achillea (Yarrow) 6 to 7.5
Almond 6 to 7.5
Ajuga (Bugle weed) 4 to 6
Anemone 6 to 7.5
Annuals (bedding garden) 6 to 7.5
Aralia 5.5 to 7.5
Arborvitae 6.5 to 8
Artemisia 6 to 7
Astilbe 5.5 to 7
Azalea 4.5 to 5.5

Balsam Fir 4.5 to 5.5
Bayberry 5 to 6
Beautybush 5.5 to 7
Beech 5 to 7.5
Begonia 6 to 7
Birch 5 to 6.5
Black-Eyed to Susan (Rudbeckia) 6 to 7.5
Bleeding Heart (Dicentra) 5.5 to 7.5
Boxwood (Buxus) 6.8 to 7.5
Buddleia (Butterfly Bush) 6 to 7

Calla Lily 6 to 7
Camellia 4.5 to 5.5
Campanula 6 to 7.5
Candytuft (Iberis) 6 to 7.5
Canna 6 to 7.5
Catmint (Nepeta) 6 to 7
Cherry 6 to 7.5
Chokeberry 5 to 6.5
Chrysanthemum 6 to 7.5
Clematis 6.5 to 7
Clethra (Summersweet) 5 to 7.5
Columbine (Aquilegia) 6 to 7.5
Coneflowerb (Rudbeckia) 6 to 7.5
Coreopsis 6 to 7.5
Corktree 5.5 to 7.5
Cotoneaster 6 to 7.5
Crabapple 6.5 to 7
Cranesbill 6 to 7.5
Cypress 6 to 7

Daylily 6 to 7.5
Deutzia 6 to 7.5
Dianthus 6 to 7.5
Dicentra 5.5 to 7.5
Dogwood 5 to 7.5

Elm 6 to 7.5
Euonymus 5.5 to 7.5
Evening Primrose 6 to 7.5

Fir 5 to 6
Forsythia 6.5 to 7
Filbert 6 to 7
Ferns (outdoor) 4.5 to 5.5
Forsythia 6.5 to 7
Fothergilla 4.5 to 6.5
Fringe Tree 5 to 6

Ginkgo (Maidenhair) 5.5 to 7.5
Grapes 5.8 to 6

Hackberry 6 to 7.5
Hawthorn 6 to 7.5
Heath 4.5 to 6
Hemlock 4.5 to 6
Heuchera (Coral Bells) 6 to 7.5
Hibiscus 6 to 7
Holly (Ilex) 4.5 to 5.5
Hollyhock 6 to 7
Honeylocust 6 to 8
Honeysuckle 6 to 7.5
Hosta 6 to 7
Hydrangea 4.5 to 7.5
Hypericum 6.5 to 6.5

Ivy 6 to 7.5

Juniper 4.5 to 5.5

Kentucky Coffee Tree 6 to 8
Kerria 5.5 to 7

Laurel 4.5 to 5.5
Lavender 6.5 to 7.5
Leucothoe 4.5 to 6
Liatris 6 to 7.5
Ligustrum (Privet) 5.5 to 8
Lilac 6.5 to 8
London Planetree 6 to 7.5
Lupine 4 to 6
Linden 6 to 7.5

Magnolia 5.5 to 7
Mahonia 6 to 7.5
Marigold 5.5 to 7
Mockorange 6 to 7
Monarda (Bee Balm) 6 to 7
Mountain Ash 6 to 7.5
Mountain Laurel 4.5 to 6.5
Myrtle 6 to 7.5
Nasturtium 5.5 to 7.5

Oak 4.5 to 6
Oriental Lily 6 to 7.5
Ornamental Grass 7

Pachysandra 5 to 8
Pansy 5.5 to 7
Pear 6 to 7.5
Peony 6 to 8
Petunia 6 to 7.5
Pieris Japonica (Andromeda) 4 to 5.5
Pine 4 to 5.5
Plum 6 to 7.5
Potentilla 6 to 7.5
Pyracantha (Firethorn) 6 to 7.5

Quince 6 to 7.5

Redbud 6.5 to 7
Rhododendron 4.5 to 5.5
Rose 6 to 7
Rose-of-Sharon (Althea) 6 to 7
Russian Olive 6 to 7.5

Smoketree 5.5 to 7.5
Spirea 6 to 7
Spruce 4 to 5.5
Strawberry 5.5 to 6
Sweet Gum 5.5 to 7
Sweet Woodruff 6.5 to 8

Taxus (Yew) 6.5 to 7.5
Tulip 6 to 7

Viburnum 6 to 7

Weigela 6 to 7.5
Witch Hazel 5.5 to 7.5
Willow 5.5 to 7.5
Wisteria 6 to 7.5
Yucca 5.5 to 7

Zinnia 5.5 to 7

Ph VALUES FOR POPULAR INDOOR PLANTS

African violet 6 to 7
Amaryllis 5.5 to 6.5
Anthurium 5 to 6
Areca Palm 6 to 6.5
Arrowhead Vine 4.5 to 5.5

Baby Tears 5 to 5.5
Begonia 6 to 7
Bird-of-Paradise (Strelitzia) 6 to 7
Boston Fern 5.5 to 7
Bromeliads 5.0

Cacti 4.5 to 6
Cast-Iron Plant (Aspidistra) 6 to 6.5
Chinese Evergreen 5.5 to 6.5
Christmas Cactus 5 to 6.5
Citrus (all) 4.5 to 5.5
Coleus 6 to 7
Columnea 4.5 to 5.5
Cordyline (Ti Plant) 6.5
Croton 5.5 to 6
Crown-of-Thorns 6 to 7
Cyclamen 5.5 to 6.3

Dieffenbachia (Dumbcane) 5 to 6

English ivy 6.0
Episcia 6 to 7
Ferns (indoor) 6 to 7
Ficus 5 to 6
Fittonia 5.5 to 6.5

Gardenia 5 to 5.5
Gloxinia (Sinningia) 6.
Grape Ivy (Cissus) 5.5

Kentia Palm 6 to 6.5

Jade 5 to 6
Jasmine 5 to 6

Lady Palm 6.

Maidenhair Fern 6 to 8
Mother-in-Law’s Tongue (Sanseveria) 5 to 7

Palms 6 to 7
Peperomia 6 to 7
Philodendron 5.5 to 6
Poinsettia 5 to 6
Pothos (Devil’s Ivy) 5 to 6
Prayer Plant (Maranta) 5.5 to 6.5

Rubber Plant (Ficus) 5 to 6.5

Schefflera 5 to 7.5
Spider Plant (Chlorophytum) 6.5 to 7
Syngonium 6.

Thanksgiving Cactus 5 to 6.5

Velvet Plant (Gynura) 5.5 to 6.5

Wandering Jew 5 to 6
Weeping Fig 5 to 6.5

Yucca 6.5 to 7

pH VALUES FOR TROPICAL PLANTS

Banana 5.5 to 6.5
Bougainvillea 6 to 7

Ginger 6.5 to 6.8

Heliconia 4.5 to 6.5

Mandevilla 5 to 6

Plumeria 6.4 to 6.8