Soil PH Preferences for Potted Plants

How to use the information in the chart. To make the best of the lists, group plants with similar soil requirements. Also, avoid planting trees, shrubs, vegetables, flowers and herbs in an unsuitable pH. For example, lilac bushes won’t do much if their feet are sitting in acid soil, while potatoes will be dotted with scab if the soil is too sweet. (Note: Don’t use them as your only guide because other factors may lead to poor performance.)

Plants are listed here in columns according to the pH level they prefer.Note that some are very sensitive to pH levels outside their tolerant range, in which case they will appear in more than one column even though they are colored yellow as being “sensitive”.

This green background means that this is an ideal pH for this plant.
This background is the ideal pH for this sensitive plant
This background means that this plant is very sensitive to the pH level of the soil.
pH 4.5 pH 5.25 pH 6.0 pH 6.75 pH 7.5
Aspidistra Aechema Abutilon Abutilon Asparagus fern
Azalea Amaryllis African violet
(St Paulia)
African Violet
(St Paulia)
Camelia Anthurium Amaryllis Asparagus fern Fern, asparagus (Asparagus)
Columnea Auricaria Anthurium Begonia Fern, maidenhair (Adiantum)
Orchid (Most) Aspidistra Begonia Bird of Paradise (Streltzia) Geranium (Pelargonium)
Parlour palm (Aspidistra) Azalea Bilbergia Bougainvillea Hyacinth
Begonia Bird of paradise (Strelitzia) Canna Indian Shot (Canna)
Bilbergia Bougainvillea Carnation (Dianthus) Ladys slipper orchid (Cypripedium & Paphiopedulum)
Butterfly flower (Schizanthus) Busy lizzie (Impatiens) Chrysanthemum Madonna lily
(Lilium candidum)
Cactus (Most) Butterfly flower (Schizanthus) Cineraria Maidenhair fern (Adiantum)
Camelia Carnation (Dianthus) Coconut palm (Cocos) Morning glory (Ipomea)
Christmas cactus (Zygocactus) Christmas cactus (Zygocactus) Coleus Pelargonium
Chrysanthemum Campanula Cockscombe (Celosia) Pepper (Capsicum)
Cineraria Chrysanthemum Cyclamen Star of Bethlehem (Campanula)
Cissus Cineraria Daffodil (Narciassus)
Clerodendron Cissus Easter lily (Zantedeschia)
Columnea Clerodendron Euphorbia
Crassula Clivia Fern, asparagus (Asparagus)
Creeping fig (Ficus pumilla) Coleus Fern, maidenhair (Adiantum)
Croton Crassula Flame nettle (Coleus)
Dracaena Creeping fig (Ficus pumilla) Freesia
Dumb cane (Diffenbachia) Croton Fuchsia
Flame nettle (Coleus) Cyclamen Geranium (Pelargonium)
Flamingo flower (Anthurium) Daffodil (Narcissus) Gerbra
Fuchsia Dumb cane (Diffenbachia) Gloxinia (Sinningia)
Gardenia Dracaena Hyacinth
Gloxinia (Sinningia) Easter lily (Zantedeschia) Indian shot (Canna)
Indian shot (Canna) Fittonia Ladys slipper orchid (Cypripedium & Paphiopedulum)
Iresine Flame nettle (Coleus) Lily, easter (Zabtedeschia)
Kangaroo vine (Cissus) Flamingo flower (Anthurium) Lily madonna (Lilium candidum)
Maranta Fuchsia Maidenhair fern (Adiantum)
Monsteria Gardenia Marigold (Calendula)
Mother in law tongue (Sanseveria) Gloxinia (Sinningia) Morning glory (Ipomea)
Norfolk island pine (Auricaria) Grevillia Mother in laws tongue (Sanseveria)
Orchid (Most) Gynura Narcissus
Pandanus Hoya Oleander (Nerium)
Parlour palm (Aspidistra) Impatiens Orange (Citrus)
Peperomia Indian shot (Canna) Pelargonium
Philodendron Iresine Pepper (Capsicum)
Pitcher plant (Nepenthes) Kangaroo vine (Cissus) Poinsettia
Poinsettia (Euphorbia) Ladys slipper orchid (Cypripedium & Paphiopedulum) Sanseveria
Prayer plant (Maranta) Maranta Slipperwort (Calceolaria)
Rubber plant (Ficus) Monstera Spring gentian (Gentiana verna)
Sanseveria Narcissus St Paulia
Silk oak (Grevillia) Neomarcia Star of bethlehem (Campanula)
Slipperwort (Calceolaria) Pandanus Tulip
Swiss cheese plant (Monsteria) Pepperomia
Tradescantia Philodendron
Urn plant (Aechmea) Plumbago
Zebrina Poinsettia (Euphorbia)
Poor mans orchid (Schizanthus)
Prayer plant (Maranta)
Rubber plant (Ficus)
Shrimp plant (Dredgerella)
Silk oak (Grevillia)
Slipperwort (Calceolaria)
Snakeskin plant (Fittonia)
Spring gentian (Gentiana verna)
St Paulia
Swiss cheese plant (Monsteria)
Wax flower (Hoya)
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pH Plant Preference Charts

More on Plant pH…

Identifying Your Soil Type
How pH Affects Plant Foods
Raising Soil pH
Lowering Soil pH

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