| 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) | Canna |
| 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 | | |
| | Swainsonia | | |
| | Swiss cheese plant (Monsteria) | | |
| | Tradescantia | | |
| | Tuberose | | |
| | Tulip | | |
| | Wax flower (Hoya) | | |
| | Zebrina | | |
| | | | |
![[ph and acidity]](images/phbutt.gif){kind=small}
![[potplant]](images/potpl.gif){kind=small}
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