The table below shows the pH requirements of certain species of plants. It seems that most of the plants require a neutral or slightly acidic soil. If the soil too acidic, one can change its pH by dispersing lime. However, it is very important to be cautious with lime because it may induce alkalosis of the soil, which is always dangerous.
Flowers, trees and shrubs | ||
Name | pH minimum | pH maximum |
Abelia | 6,0 | 8,0 |
Acacia | 6,0 | 8,0 |
Acanthus | 6,0 | 7,0 |
Aconitum | 5,0 | 6,0 |
Adonis | 6,0 | 8,0 |
Ageratum | 6,0 | 7,5 |
Ailanthus | 6,0 | 7,5 |
Ajuga | 4,0 | 6,0 |
Althea | 6,0 | 7,5 |
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 |
Anthirrhinum | 5,5 | 7,0 |
Arbutus | 4,0 | 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 |
Aster | 5,5 | 7,5 |
Avena | 6,0 | 7,5 |
Azalea | 4,5 | 6,0 |
Bergenia | 6,0 | 7,5 |
Buddleia | 6,0 | 7,0 |
Buphthalum | 6,0 | 8,0 |
Calendula | 5,5 | 7,0 |
Camassia | 6,0 | 8,0 |
Campanula | 6,0 | 7,5 |
Canna | 6,0 | 8,0 |
Catalpa | 6,0 | 8,0 |
Celosia | 6,0 | 7,0 |
Centaurea | 5,0 | 6,5 |
Cerastium | 6,0 | 7,0 |
Cheiranthus | 5,5 | 7,5 |
Chrysanthemum | 6,0 | 7,0 |
Cissus | 6,0 | 7,5 |
Cistus | 6,0 | 7,5 |
Clarkia | 6,0 | 6,5 |
Clematis | 5,5 | 7,0 |
Clianthus | 6,0 | 7,5 |
Colchicum | 5,5 | 6,5 |
Aquillegia | 6,0 | 7,0 |
Convallaria | 4,5 | 6,0 |
Convolvulus | 6,0 | 8,0 |
Coreopsis | 5,0 | 6,0 |
Cornus | 5,0 | 7,0 |
Coronilla | 6,5 | 7,5 |
Corydalis | 6,0 | 8,0 |
Cosmos | 5,0 | 8,0 |
Cotoneaster | 6,5 | 8,0 |
Crocus | 6,0 | 8,0 |
Cynoglossum | 6,0 | 7,5 |
Dahlia | 6,0 | 7,5 |
Delphinium | 6,0 | 7,5 |
Deutzia | 6,0 | 7,5 |
Dianthus | 6,0 | 7,5 |
Digitalis | 6,0 | 7,5 |
Leontopodium / Edelweiss | 6,5 | 7,5 |
Elaeagnus | 5,0 | 7,5 |
Enkianthus | 5,0 | 6,0 |
Erica | 4,5 | 6,0 |
Euphorbia | 6,0 | 7,0 |
Forsythia | 6,0 | 7,5 |
Fuchsia | 5,5 | 6,5 |
Gaillardia | 6,0 | 7,5 |
Gazania | 5,5 | 7,0 |
Genista | 5,0 | 6,0 |
Gentiana | 5,0 | 7,5 |
Geum | 6,0 | 7,5 |
Gladiolus | 6,0 | 7,0 |
Globularia | 5,5 | 7,0 |
Godetia | 6,0 | 7,5 |
Gypsophila | 6,0 | 7,5 |
Hedera | 6,0 | 7,5 |
Helianthus | 5,0 | 7,0 |
Helleborus | 6,0 | 7,5 |
Hemerocallis | 6,0 | 8,0 |
Hyacinthus | 6,5 | 7,5 |
Hydrangea | 4,0 | 5,0 |
Hypericum | 5,5 | 7,0 |
Iberis | 6,0 | 7,0 |
Ilex | 5,0 | 7,5 |
Ipomoea | 6,0 | 6,5 |
Iris | 5,0 | 7,5 |
Juniperus | 5,0 | 6,5 |
Kalmia | 4,5 | 5,0 |
Kerria | 6,0 | 7,0 |
Knipphofia | 6,0 | 7,5 |
Kolwitzia | 6,0 | 7,5 |
Laburnum | 6,0 | 7,0 |
Lathyrus | 6,0 | 7,5 |
Laurus | 5,0 | 6,0 |
Lavandula | 6,5 | 7,5 |
Liatris | 5,5 | 7,5 |
Lingustrum | 5,0 | 6,5 |
Lithospermum | 5,0 | 6,5 |
Lobelia | 6,0 | 7,5 |
Lonicera | 6,0 | 7,5 |
Lupinus | 5,5 | 7,0 |
Magnolia | 5,0 | 6,0 |
Mahonia | 6,0 | 7,0 |
Malus | 6,0 | 7,5 |
Mathiola | 6,0 | 7,5 |
Molinia | 4,0 | 5,0 |
Moraea | 5,5 | 6,5 |
Myosotis | 6,0 | 7,0 |
Trapaelum / Nasturtium | 6,0 | 7,5 |
Narcissus | 6,0 | 7,5 |
Nicotiana | 5,5 | 6,5 |
Pachysandra | 5,0 | 8,0 |
Paeonia | 6,0 | 7,5 |
Papaver | 6,0 | 7,5 |
Passiflora | 6,0 | 8,0 |
Paulownia | 6,0 | 8,0 |
Penstemon | 5,5 | 7,0 |
Petunia | 6,0 | 7,5 |
Polygonum | 6,0 | 7,5 |
Portulaca | 5,5 | 7,5 |
Primula | 6,0 | 7,5 |
Prunella | 6,0 | 7,5 |
Prunus | 6,5 | 7,5 |
Pyracantha | 5,0 | 6,0 |
Rhododendron | 4,5 | 6,0 |
Rhus | 6,0 | 7,5 |
Rosa / Roses | 6,0 | 7,0 |
Salvia | 6,0 | 7,5 |
Saponaria | 6,0 | 7,5 |
Scabiosa | 5,0 | 7,5 |
Sedum | 6,0 | 8,0 |
Solidago | 5,0 | 7,0 |
Spiraea | 6,0 | 7,5 |
Syringa | 6,0 | 8,0 |
Tagetes | 5,5 | 7,0 |
Tamarix | 6,5 | 8,0 |
Trillium | 5,0 | 6,5 |
Tulipa | 6,0 | 7,0 |
Veronica | 5,5 | 6,5 |
Viburnum | 5,0 | 7,5 |
Vinca | 6,0 | 7,5 |
Viola | 5,5 | 6,5 |
Wisteria | 6,0 | 8,0 |
Zinnia | 5,5 | 7,5 |
