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Plant pH Reference List
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Plant pH Reference List
Flowers
Name
pH Range
Mixed Flowers
6.0 - 7.0
Acacia
6.0 - 8.0
Aconitum
5.0 - 6.0
Adonis
6.0 - 8.0
Ageratum
6.0 - 7.5
Ajuga
4.0 - 6.0
Alyssum
6.0 - 7.5
Amaranthus
6.0 - 6.5
Anchusa
6.0 - 7.5
Androsace
5.0 - 6.0
Anemone
6.0 - 7.5
Anthyllis
5.0 - 6.0
Arenaria
6.0 - 8.0
Aristea
6.0 - 7.5
Armeria
6.0 - 7.5
Arnica
5.0 - 6.5
Asperula
6.0 - 8.0
Asphodoline
6.0 - 8.0
Aster
5.5 - 7.5
Aubrieta
6.0 - 7.5
Balloon Flower
6.0 - 6.5
Bayberry
4.0 - 6.0
Begonia
5.5 - 7.0
Bergenia
6.0 - 7.5
Black-Eyed Susan
5.5 - 7.5
Bleeding Heart
6.0 - 7.5
Bluebell
6.0 - 7.6
Buphthalum
6.0 - 8.0
Calendula
5.5 - 7.0
Camassia
6.0 - 8.0
Candytuft
6.0 - 7.5
Canna
6.0 - 8.0
Canterbury Bells
7.0 - 7.5
Cardinal Flower
4.0 - 6.0
Carnation
6.0 - 7.5
Celosia
6.0 - 7.0
Centaurea
5.0 - 6.5
Cerastium
6.0 - 7.0
Chrysanthemum
6.0 - 7.0
Clarkia
6.0 - 6.5
Clematis
5.5 - 7.0
Clianthus
6.0 - 7.5
Colchicum
5.5 - 6.5
Columbine
6.0 - 7.0
Convolvulus
6.0 - 8.0
Coreopsis
5.0 - 6.0
Coronilla
6.5 - 7.5
Corydalis
6.0 - 8.0
Cosmos
5.0 - 8.0
Crocus
6.0 - 8.0
Cynoglossum
6.0 - 7.5
Daffodil
6.0 - 6.5
Dahlia
6.0 - 7.5
Day Lily
6.0 - 8.0
Delphinium
6.0 - 7.5
Dianthus
6.0 - 7.5
Edelweiss
6.5 - 7.5
Euphorbia
6.0 - 7.0
Everlastings
5.0 - 6.0
Forget-Me-Nots
6.0 - 7.0
Foxglove
6.0 - 7.5
Fritillaria
6.0 - 7.5
Fuchsia
5.5 - 7.5
Gaillardia
6.0 - 7.5
Gazania
5.5 - 7.0
Gentiana
5.0 - 7.5
Geranium
6.0 - 8.1
Geum
6.0 - 7.5
Gladioili
6.0 - 7.0
Globularia
5.5 - 7.0
Godetia
6.0 - 7.5
Golden Rod
5.0 - 7.0
Gypsophilia
6.0 - 7.5
Heather
4.0 - 6.0
Helianthus
5.0 - 7.0
Helleborus
6.0 - 7.5
Hens And Chickens
6.0 - 7.0
Hollyhock
6.0 - 7.5
Hosta
6.5 - 7.5
Hyacinth
6.5 - 7.5
Impatiens
5.5 - 6.5
Iris
5.0 - 6.5
Ivy
6.0 - 7.5
Lavender
6.5 - 7.5
Liatris
5.5 - 7.5
Lily Of The Valley
4.5 - 6.0
Lithospermum
5.0 - 6.5
Lobelia
6.5 - 7.5
Lupinus
5.5 - 7.0
Marigold
5.5 - 7.0
Moraea
5.5 - 6.5
Morning Glory
6.0 - 7.5
Moss
6.0 - 8.0
Moss, Sphagnum
3.5 - 5.0
Myosotis
6.0 - 7.0
Myrtle
6.0 - 8.0
Narcissus
6.0 - 8.5
Nasturtium
5.5 - 7.5
Nicotiana
5.5 - 6.5
Pachysandra
5.0 - 8.0
Paeonia
6.0 - 7.5
Pansy
5.5 - 7.0
Pasque Flower
5.0 - 6.0
Passion Flower
6.0 - 8.0
Penstemon
5.5 - 7.0
Periwinkle
6.0 - 7.5
Petunia
6.0 - 7.5
Pinks
6.0 - 7.5
Polyanthus
6.0 - 7.5
Polygonum
6.0 - 7.5
Poppy
6.0 - 7.5
Portulaca
5.5 - 7.5
Primrose
5.5 - 6.5
Primula
6.0 - 7.5
Prunella
6.0 - 7.5
Pyrethrum
6.0 - 7.5
Red Hot Poker
6.0 - 7.5
Roses - Climbing
6.0 - 7.0
Roses - Hybrid Tea
5.5 - 7.0
Salvia
6.0 - 7.5
Scabiosa
5.0 - 7.5
Sedum
6.0 - 7.5
Snapdragon
5.5 - 7.0
Snowdrop
6.0 - 8.0
Soapwort
6.0 - 7.5
Speedwell
5.5 - 6.5
Stonecrop
6.5 - 7.5
Sunflower
5.0 - 7.0
Sweet Pea
6.0 - 7.5
Sweet William
6.0 - 7.5
Trillium
5.0 - 6.5
Tulip
6.0 - 7.1
Viola
5.5 - 6.5
Wallflower
5.5 - 7.5
Water Lily
5.5 - 6.5
Yucca
6.0 - 7.5
Zinnia
5.5 - 7.5
Fruits
Name
pH Range
Mixed Fruit
6.0 - 7.0
Apple
5.0 - 6.5
Apricot
6.0 - 7.0
Blackberry
5.0 - 6.0
Blueberry
4.0 - 6.0
Cantaloupe
6.5 - 7.5
Cherry
6.0 - 7.5
Cranberry
5.5 - 6.5
Current
6.0 - 8.0
Gooseberry
5.0 - 6.5
Grapevine
6.0 - 7.0
Huckleberry
4.0 - 6.0
Lemon
6.0 - 7.0
Melon
5.5 - 6.5
Mulberry
6.0 - 7.5
Nectarine
6.0 - 7.5
Peach
6.0 - 7.5
Pear
6.0 - 7.5
Pineapple
5.0 - 6.0
Plum
6.0 - 7.5
Quince
6.0 - 7.5
Raspberry
5.0 - 7.5
Rhubarb
5.5 - 7.0
Strawberry
5.0 - 7.5
Watermelon
5.5 - 6.5
Houseplants & Greenhouse
Name
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
Amarylis
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
Azaela
4.5 - 6.0
Baby's Breath
6.0 - 7.5
Baby's Tears
5.0 - 6.0
Bird Of Paradise
6.0 - 6.5
Bishop's Cap
5.0 - 6.0
Blood Leaf
5.5 - 6.5
Boston Fern
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
Caladium
5.0 - 6.0
Calcaolaria
6.0 - 7.0
Calla Lily
6.0 - 7.0
Camelia
4.5 - 5.5
Campanula
5.5 - 6.5
Cantury Plant
5.0 - 6.5
Capsicum
5.0 - 6.5
Cardinal Flower
5.0 - 6.0
Castor Oil Plant
5.5 - 6.5
Chinese Evergreen
5.0 - 6.0
Chinese Primrose
6.0 - 7.5
Christmas Cactus
5.0 - 6.5
Cineraria
5.5 - 7.0
Cissus
6.0 - 7.5
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
Dizgotheca
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
Ferns - Bird's Nest
5.0 - 5.5
Ferns - Button
6.0 - 8.0
Ferns - Christmas
6.0 - 7.5
Ferns - Cloak
6.0 - 7.5
Ferns - Feather
5.5 - 6.5
Ferns - Hart's Tongue
7.0 - 8.0
Ferns - Holly
4.5 - 6.0
Ferns - Maidenhair
6.0 - 8.0
Ferns - Rabbits Foot
6.0 - 7.5
Ferns - 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 Hyacinth
6.0 - 7.5
Grape Ivy
5.0 - 6.5
Grevillea
5.5 - 6.5
Gynura
5.5 - 6.5
Hedera (Ivy)
6.0 - 8.0
Heliotropium
5.0 - 6.0
Herringbone Plant
6.0 - 6.0
Hibiscus Plant
6.0 - 8.0
Hoya
5.0 - 6.5
Ivy Tree
6.0 - 7.0
Jacaranda
6.0 - 7.5
Japanese Sedge
6.0 - 8.0
Jasminum
5.5 - 7.0
Jerusalem Cherry
5.5 - 6.5
Jessamone
5.0 - 6.0
Kalanchoe
6.0 - 7.5
Kangaroo Thorn
6.0 - 8.0
Kangaroo Vine
5.0 - 6.5
Lantana
5.5 - 7.0
Lemon Plant
6.0 - 7.5
Mimosa
5.0 - 7.0
Mind Your Own Business
5.0 - 5.5
Monstera
5.0 - 6.0
Never Never Plant
5.0 - 6.0
Nicodemia (Indoor Oak)
6.0 - 8.0
Norfolk Island Pine
5.0 - 6.0
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
Peacock Plant
5.0 - 6.0
Pellionia
5.0 - 6.0
Peperomia
5.0 - 6.0
Philodendron
5.0 - 6.0
Pilea
6.0 - 8.0
Plumbago
5.5 - 6.5
Podacarpus
5.0 - 6.5
Pointsettia
6.0 - 7.5
Polyscias
6.0 - 7.5
Pothos
5.0 - 6.0
Prayer Plant
5.0 - 6.0
Punica
5.5 - 6.5
Sanserieria
4.5 - 7.0
Saxifraga
6.0 - 8.0
Scindapsus
5.0 - 6.0
Shrimp Plant
6.0 - 7.0
Spanish Bayonet
6.0 - 7.5
Spider Plant
6.0 - 7.5
Succulents
5.0 - 6.5
Synogonium
5.0 - 6.0
Tolmiea
5.0 - 6.0
Tradescantia
5.0 - 6.0
Umbrella Tree
5.0 - 7.5
Venus Flytrap
4.0 - 5.0
Weeping Fig
5.0 - 6.0
Zebrina
5.0 - 6.0
Lawns
Name
pH Range
Blended Varieties
6.0 - 7.0
Creeping Bent Grass
5.5 - 6.5
Fine Fescue
5.5 - 6.5
Kentucky Bluegrass
6.0 - 7.0
Perennial Ryegrass
5.5 - 7.0
Trees & Shrubs
Name
pH Range
Abelia
6.0 - 8.0
Acanthus
6.0 - 7.0
Ailanthus
6.0 - 7.5
Althea
6.0 - 7.5
Arbutus
4.0 - 6.0
Azalea
4.5 - 6.0
Boxwood
6.0 - 7.5
Broom
5.0 - 6.0
Buddleia
6.0 - 7.0
Butterfly Bush
4.0 - 6.0
Catalpa
6.0 - 8.0
Cedar
5.5 - 7.5
Cistus
6.0 - 7.5
Cottoneaster
6.0 - 8.0
Crab Apple
6.0 - 7.5
Deutzia
6.0 - 7.5
Dogwood
5.0 - 7.0
Elaeagnus
5.0 - 7.5
Enkianthus
5.0 - 6.0
Erica
4.5 - 6.0
Euonymous
6.0 - 8.0
Firethorn
6.0 - 8.0
Forsythia
6.0 - 8.0
Hawthorn
6.0 - 7.0
Holly
5.0 - 6.5
Honeysuckle
6.0 - 7.5
Hydrangea - Blue
4.0 - 5.0
Hydrangea - Pink
6.0 - 7.0
Hydrangea - White
6.5 - 8.0
Hypericum
5.5 - 7.0
Juniper
5.0 - 6.5
Kalmia
4.5 - 5.0
Kerria
6.0 - 7.0
Laurel
6.5 - 7.5
Ligustrum
5.0 - 7.5
Lilac
6.0 - 7.5
Magnolia
5.0 - 6.0
Mahonia
6.0 - 7.0
Molinia
4.0 - 5.0
Paulownia
6.0 - 8.0
Privet
5.0 - 7.5
Prunus
6.5 - 7.5
Rhododendron
4.5 - 6.0
Roses - Climbing
6.0 - 7.0
Roses - Hybrid Tea
5.5 - 7.0
Spiraea
6.0 - 7.5
Spruce
4.0 - 5.0
Sumack
5.0 - 6.5
Tamarix
6.5 - 8.0
Vibernum
5.0 - 7.5
Virginia Creeper
5.0 - 7.5
Weigelia
6.0 - 7.5
Wisteria
6.0 - 8.0
Vegetables & Herbs
Name
pH Range
Mixed Vegetables
6.0 - 7.0
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 Sprouts
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
Chinese Cabbage
6.0 - 7.5
Chives
6.0 - 7.0
Corn - Sweet
5.5 - 7.0
Courgettes
5.5 - 7.0
Cress
6.0 - 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
Mint
7.0 - 8.0
Mushroom
6.5 - 7.5
Mustard
6.0 - 7.5
Onion
6.0 - 7.0
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
Potato
4.5 - 6.0
Potato - Sweet
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
Soybean
5.5 - 6.5
Spearmint
5.5 - 7.5
Spinach
6.0 - 7.5
Swede
5.0 - 7.0
Thyme
5.5 - 7.0
Tomato
5.5 - 7.5
Turnip
5.5 - 7.0
Water Cress
6.0 - 8.0
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