| pH 4.5 | pH 5.25 | pH 6.0 | pH 6.75 | pH 7.5 |
| Anemone | Begonia | Ageratum | Ageratum | Ageratum |
| Autumn Gentians | Calliopsis (Coreopsis) | Alyssum | Alyssum | Annual Phlox |
| Gentian | Chrysanthemum | Avens (Geum) | Annual phlox | Cherry pie (Heliotrope) |
| Iris kaempferi | Clarkia | Baby's breath (Gypsophila) | Aster | Cosmos (Cosmea) |
| Mecanopsis | Clary (Salvia) | Begonia | Avens (Geum) | Crocus |
| Pachysandra terminalis | Cosmos (Cosmea) | Burning bush (Kochia) | Baby's breath (Gypsophila) | Day lily (Hemerocalis) |
| Grasses (Agrostis sp) | Busy lizzie (Impatiens) | Bachelor's buttons (Ranunculus) | Flax (Linum) |
| Lupin | Calendula | Bearded iris | Forget me not (Myosotis) |
| Marigold (Tagetes) | Calliopsis (Coreopsis) | Begonia | Geranium (Pelargonium) |
| Nasturtium (Tropaeolium) | Campanula | Bleeding heart (Dicentra) | Hyacinth |
| Pachysandra terminalis | Candytuft (Iberis) | Bluebell (Scilla) | Iceland poppy (Papaver) |
| Pansy (Viola) | Carnation | Burning bush (Kochia) | Love lies bleeding (Amaranthus) |
| Phlox | Chrysanth | Busy lizzie (Imaptiens) | Mignonette (Reseda) |
| Pick a back (Ptolmeia) | Clarkia | Calendula | Nasturtium (Tropeaolium) |
| Primrose (Primula)Violet (Viola) | Clary (Salvia) | Candytuft (Iberis) | Oxalis |
| Violet (Viola) | Columbine (Aquilegia) | Carnation (Dianthus) | Peony |
| | Coral bells (Heuchera) | Cherry pie (Heliotrope) | Petunia |
| | Cosmos (Cosmea) | Chrysanth | Pinks (Dianthus) |
| | Daffodil | Clarkia | Poppy (Papaver) |
| | Dahlia | Columbine (Aquilegia) | Scilla |
| | Delphinium | Coral bells (Heuchera) | Snowdrop (Galanthus) |
| | Fuchsia | Cosmos (Cosmea) | Sweet pea (Lathyrus) |
| | Gladiolus | Crocus | Sweet William (Dianthus) |
| | Grasses (Agrostis sp) | Daffodil | Vebena |
| | Hollyhock (Althea) | Dahlia | |
| | Impatiens | Daisy (Bellis) | |
| | Iris | Delphinium | |
| | Lilies (Lilium) | Euphorbia | |
| | Lobelia | Feverfew (Chrysanth.) | |
| | Lupin | Flax (Linum) | |
| | Marigold (Tagetes) | Forget me not (Myosotis) | |
| | Michelmas daisy (Aster) | Foxglove (Digitalis) | |
| | Mignonette (Reseda) | Geranium | |
| | Narcissus | Gladiolus | |
| | Nasturtium (Tropaeolium) | Godetia | |
| | Pansy (Viola) | Grasses | |
| | Petunia | Hollyhock (Althea) | |
| | Phlox | Hyacinth | |
| | Pick a back (Ptolmeia) | Iceland poppy | |
| | Primrose (Primula) | Impatiens | |
| | Primula | Iris | |
| | Purslane (Portulaca) | Polemonium (Jacobs Ladder) | |
| | Red hot poker (Kniphophia) | Larkspur (Delphinium) | |
| | Rose (Rosa) | Lily (Lilium) | |
| | Salvia | Hemorocalis (Day Lily) | |
| | Scabious | Lobelia | |
| | Snapdragon (Antirrhinum) | Love lies bleeding | |
| | Stock | Lupin | |
| | Sunflower (Helianthus) | Marigold (Tagetes) | |
| | Tobacco (Nicotiana) | Mignonette (Reseda) | |
| | Tulip | Narcissus | |
| | Verbena | Nasturtium | |
| | Viola | Oxalis | |
| | Violet (Viola) | Pansy (Viola) | |
| | Wallflower | Peony | |
| | Waterlily (Nymphea) | Petunia | |
| | Zinnia | Pink (Dianthus) | |
| | | Poppy (Papaver) | |
| | | Portulaca | |
| | | Primrose (Primula) | |
| | | Pyrethrum | |
| | | Red hot poker (Kniphophia) | |
| | | Salvia | |
| | | Scabious | |
| | | Scilla | |
| | | Snapdragon (Antirrhinum) | |
| | | Spurge (Euphorbia) | |
| | | Snowdrop (Galanthus) | |
| | | Stock (Mathiola) | |
| | | Sunflower (Helianthus) | |
| | | Sweet pea (Lathyrus) | |
| | | Sweet william (Dianthus) | |
| | | Tobacco (Nicotiana) | |
| | | Tulip | |
| | | Verbena | |
| | | Viola | |
| | | Violet (Viola) | |
| | | Wallflower | |
| | | Zinnia | |
| | | | |