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Plant pH Reference List
Trees & Shrubs| Name | pH Range | Name | pH Range |
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| 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 | | | Top of page
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