pH Values for Plants, Fruits and vegetables
| Vegetables & Herbs | Preferred pH Range |
| Artichoke | 6.5 - 7.5 |
| Asparagus | 6.0 - 8.0 |
| Basil | 5.5 - 6.5 |
| Bean | 6.0 - 7.5 |
| Beetroot | 6.0 - 7.5 |
| Broccoli | 6.0 - 7.0 |
| Brussels | 6.0 - 7.5 |
| Cabbage | 6.0 - 7.5 |
| Calabrese | 6.5 - 7.5 |
| Carrot | 5.5 - 7.0 |
| Cauliflower | 5.5 - 7.5 |
| Celery | 6.0 - 7.0 |
| Chicory | 5.0 - 6.5 |
| Chinese Cabbage | 6.0 - 7.5 |
| Chives | 6.0 - 7.0 |
| Corn, Sweet | 5.5 - 7.5 |
| Cress | 6.0 - 7.0 |
| Courgettes | 5.5 - 7.0 |
| Cucumber | 5.5 - 7.5 |
| Fennel | 5.0 - 6.0 |
| Garlic | 5.5 - 7.5 |
| Ginger | 6.0 - 8.0 |
| Horseradish | 6.0 - 7.0 |
| Kale | 6.0 - 7.5 |
| Kohlrabi | 6.0 - 7.5 |
| Leek | 6.0 - 8.0 |
| Lentil | 5.5 - 7.0 |
| Lettuce | 6.0 - 7.0 |
| Marjoram | 6.0 - 8.0 |
| Marrow | 6.0 - 7.5 |
| Millet | 6.0 - 6.5 |
| Mint | 7.0 - 8.0 |
| Mushroom | 6.5 - 7.5 |
| Mustard | 6.0 - 7.5 |
| Olive | 5.5 - 6.5 |
| Onion | 6.0 - 7.0 |
| Paprika | 7.0 - 8.5 |
| Parsley | 5.0 - 7.0 |
| Parsnip | 5.5 - 7.5 |
| Pea | 6.0 - 7.5 |
| Peanut | 5.0 - 6.5 |
| Pepper | 5.5 - 7.0 |
| Peppermint | 6.0 - 7.5 |
| Pistacio | 5.0 - 6.0 |
| Potato, Sweet | 4.5 - 6.0 |
| Potato | 5.5 - 6.0 |
| Pumpkin | 5.5 - 7.5 |
| Radish | 6.0 - 7.0 |
| Rice | 5.0 - 6.5 |
| Rosemary | 5.0 - 6.0 |
| Sage | 5.5 - 6.5 |
| Shallot | 5.5 - 7.0 |
| Sorghum | 5.5 - 7.5 |
| Soybean | 5.5 - 6.5 |
| Spearmint | 5.5 - 7.5 |
| Spinach | 6.0 - 7.5 |
| Swede | 5.5 - 7.0 |
| Thyme | 5.5 - 7.0 |
| Tomato | 5.5 - 7.5 |
| Turnip | 5.5 - 7.0 |
| Watercress | 6.0 - 8.0 |
| Fruits | Preferred pH Range |
| Apple | 5.0 - 6.5 |
| Apricot | 6.0 - 7.0 |
| Avocado | 6.0 - 7.5 |
| Banana | 5.0 - 7.0 |
| Blackberry | 5.0 - 6.0 |
| Cherry | 6.0 - 7.5 |
| Cranberry | 5.5 - 6.5 |
| Currant, Black | 6.0 - 8.0 |
| Currant, Red | 5.5 - 7.0 |
| Currant, White | 6.0 - 8.0 |
| Damson | 6.0 - 7.5 |
| Gooseberry | 5.0 - 6.5 |
| Grapevine | 6.0 - 7.0 |
| Grapefruit | 6.0 - 7.5 |
| Hazelnut | 6.0 - 7.0 |
| Hop | 6.0 - 7.5 |
| Lemon | 6.0 - 7.0 |
| Lychee | 6.0 - 7.0 |
| Mango | 5.0 - 6.0 |
| Melon | 5.5 - 6.5 |
| Mulberry | 6.0 - 7.5 |
| Nectarine | 6.0 - 7.5 |
| Papaw | 6.0 - 7.5 |
| Peach | 6.0 - 7.5 |
| Pear | 6.0 - 7.5 |
| Pineapple | 5.0 - 6.0 |
| Plum | 6.0 - 7.5 |
| Pomegranate | 5.5 - 6.5 |
| Quince | 6.0 - 7.5 |
| Raspberry | 5.0 - 6.5 |
| Rhubarb | 5.5 - 7.0 |
| Strawberry | 5.0 - 7.5 |
| Watermelon | 5.5 - 6.5 |
| Greenhouse Plants & House Plants | Preferred pH Range |
| Abutilon | 5.5 - 6.5 |
| Acorus | 5.0 - 6.5 |
| Aechmea | 5.0 - 5.5 |
| African Violet | 6.0 - 7.0 |
| Aglaonema | 5.0 - 6.0 |
| Amaryllis | 5.5 - 6.5 |
| Anthurium | 5.0 - 6.0 |
| Aphelandra | 5.0 - 6.0 |
| Araucaria | 5.0 - 6.0 |
| Asparagus Fern | 6.0 - 8.0 |
| Aspidistra | 4.0 - 5.5 |
| Azalea | 4.5 - 6.0 |
| Begonia | 5.5 - 7.0 |
| Bird Of Paradise | 6.0 - 6.5 |
| Bishop's Cap | 5.0 - 6.0 |
| Black-eyed Susan | 5.5 - 7.5 |
| Blood Leaf | 5.5 - 6.5 |
| Bottlebrush | 6.0 - 7.5 |
| Bougainvillea | 5.5 - 7.5 |
| Bromeliads | 5.0 - 7.5 |
| Butterfly Flower | 6.0 - 7.5 |
| Cacti | 4.5 - 6.0 |
| Calceolaria | 6.0 - 7.0 |
| Caladium | 6.0 - 7.5 |
| Calla Lily | 6.0 - 7.0 |
| Camellia | 4.5 - 5.5 |
| Campanula | 5.5 - 6.5 |
| Capsicum | 5.0 - 6.5 |
| Cardinal Flower | 5.0 - 6.0 |
| Castor Oil Plant | 5.5 - 6.5 |
| Century Plant | 5.0 - 6.5 |
| Chinese Primrose | 6.0 - 7.5 |
| Christmas Cactus | 5.0 - 6.5 |
| Cineraria | 5.5 - 7.0 |
| Clerodendrum | 5.0 - 6.0 |
| Clivia | 5.5 - 6.5 |
| Cockscomb | 6.0 - 7.0 |
| Coffee Plant | 5.0 - 6.0 |
| Coleus | 6.0 - 7.0 |
| Columnea | 4.5 - 5.5 |
| Coral Berry | 5.5 - 7.5 |
| Crassula | 5.0 - 6.0 |
| Creeping Fig | 5.0 - 6.0 |
| Croton | 5.0 - 6.0 |
| Crown Of Thorns | 6.0 - 7.5 |
| Cuphea | 6.0 - 7.5 |
| Cyclamen | 6.0 - 7.0 |
| Cyperus | 5.0 - 7.5 |
| Dieffenbachia | 5.0 - 6.0 |
| Dipladenia | 6.0 - 7.5 |
| Dizygotheca | 6.0 - 7.5 |
| Dracaena | 5.0 - 6.0 |
| Easter Lily | 6.0 - 7.0 |
| Elephant's Ear | 5.0 - 6.0 |
| Episcia | 6.0 - 7.0 |
| Eucalyptus | 6.0 - 8.0 |
| Euonymus | 5.5 - 7.0 |
| Fern, Bird's Nest | 5.0 - 5.5 |
| Fern, Boston | 5.5 - 6.5 |
| Fern, Button | 6.0 - 8.0 |
| Fern, Christmas | 6.0 - 7.5 |
| Fern, Cloak | 6.0 - 7.5 |
| Fern, Feather | 5.5 - 6.5 |
| Fern, Hart's Tongue | 7.0 - 8.0 |
| Fern, Holly | 4.5 - 6.0 |
| Fern, Maidenhair | 6.0 - 8.0 |
| Fern, Rabbits Foot | 6.0 - 7.5 |
| Fern, Spleenwort | 6.0 - 7.5 |
| Fig | 5.0 - 6.0 |
| Fittonia | 5.5 - 6.5 |
| Freesia | 6.0 - 7.5 |
| Gardenia | 5.0 - 6.0 |
| Genista | 6.5 - 7.5 |
| Geranium | 6.0 - 8.0 |
| Gloxinia | 5.5 - 6.5 |
| Grape Ivy | 5.0 - 6.5 |
| Grevillea | 5.5 - 6.5 |
| Gynura | 5.5 - 6.5 |
| Hedera (Ivy) | 6.0 - 7.5 |
| Heliotropium | 6.0 - 8.0 |
| Helxine | 5.0 - 5.5 |
| Herringbone Plant | 5.0 - 6.0 |
| Hibiscus | 6.0 - 8.0 |
| Hoya | 5.0 - 6.5 |
| Impatiens | 5.5 - 6.5 |
| Iresine | 5.0 - 6.5 |
| Ivy Tree | 6.0 - 7.0 |
| Jacaranda | 6.0 - 7.5 |
| Japanese Sedge | 6.0 - 8.0 |
| Jasminum | 6.0 - 7.5 |
| Jerusalem Cherry | 6.0 - 7.5 |
| Jessamine | 5.5 - 7.0 |
| Kalanchoe | 6.0 - 7.5 |
| Kangaroo Thorn | 6.0 - 8.0 |
| Kangaroo Vine | 5.0 - 6.5 |
| Lace Flower | 6.0 - 7.0 |
| Lantana | 5.5 - 7.0 |
| Laurus | 5.0 - 6.0 |
| Lemon Plant | 6.0 - 7.5 |
| Mimosa | 5.0 - 7.0 |
| Mind Your Own Business | 5.0 - 5.5 |
| Monsters | 5.0 - 6.0 |
| Myrtle | 6.0 - 8.0 |
| Never Never Plant | 5.0 - 6.0 |
| Nicodemia | 6.0 - 8.0 |
| Oleander | 6.0 - 7.5 |
| Oplismenus | 5.0 - 6.0 |
| Orchid | 4.5 - 5.5 |
| Oxalis | 6.0 - 8.0 |
| Palms | 6.0 - 7.5 |
| Pandanus | 5.0 - 6.0 |
| Patient Lucy | 5.5 - 6.5 |
| Peacock Plant | 5.0 - 6.0 |
| Pellionia | 5.0 - 6.0 |
| Peperomia | 5.0 - 6.0 |
| Philodendron | 5.0 - 6.0 |
| Piles | 6.0 - 8.0 |
| Plumbago | 5.5 - 6.5 |
| Podocarpus | 5.0 - 6.5 |
| Poinsettia | 6.0 - 7.5 |
| Polyscias | 6.0 - 7.5 |
| Prayer Plant | 5.0 - 6.0 |
| Punica | 5.5 - 6.5 |
| Rubber Plant | 5.0 - 6.0 |
| Sansevieria | 4.5 - 7.0 |
| Saxifraga | 6.0 - 8.0 |
| Schizanthus | 6.0 - 7.0 |
| Scindapsus | 5.0 - 6.0 |
| Selaginella | 6.0 - 7.0 |
| Shrimp Plant | 5.5 - 6.5 |
| Spanish Bayonet | 6.0 - 7.5 |
| Spider Plant | 6.0 - 7.5 |
| Succulents | 5.0 - 6.5 |
| Syngonium | 5.0 - 6.0 |
| Thunbergia | 5.5 - 7.5 |
| Tolmiea | 5.0 - 6.0 |
| Tradescantia | 5.0 - 6.0 |
| Umbrella Tree | 5.0 - 7.5 |
| Venus Fly Trap | 4.0 - 5.0 |
| Weeping Fig | 5.0 - 6.0 |
| Yucca | 6.0 - 7.5 |
| Zebrina | 5.0 - 6.0 |