How to use the information in the chart. To make the best of the above 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 |
Bilberry |
Apples |
Almond |
Alfalfa |
Alfalfa |
Cranberry |
Bilberry |
Apple |
Almond |
Artichoke, jerusalem |
|
Blackberry |
Aubergine |
Apple |
Asparagus |
|
Chicory |
Bean, broad |
Artichoke, jerusalem |
Avocado |
|
Cranberry |
Bean, climbing |
Asparagus |
Barley |
|
Gooseberry |
Bean, french |
Avacado |
Bean, french |
|
Pineapple |
Bean runner |
Barley |
Beetroot |
|
Potato |
Blackberry |
Bean, broad |
Beet, sugar |
|
Rhubarb |
Broccoli |
Bean, climbing |
Broccoli |
|
Rosemary |
Brussels sprouts |
Bean, french |
Cabbage |
|
Sage |
Cabbage |
Bean, lima |
Capsicum |
|
Strawberries |
Capsicum |
Bean, runner |
Cauliflower |
|
|
Carrot |
Beet, sugar |
Celery |
|
|
Cauliflower |
Beetroot |
Cherries |
|
|
Celery |
Broad bean |
Chives |
|
|
Cherry |
Broccoli |
Corn |
|
|
Chickory |
Brussels sprouts |
Cucumber |
|
|
Chives |
Cabbage |
Currants |
|
|
Climbing bean |
Cantaloup melon |
French beans |
|
|
Corn |
Capsicum |
Grape vine |
|
|
Courgette |
Carrots |
Garlic |
|
|
Cucumber |
Cauliflower |
Horseradish |
|
|
Currants |
Celery |
Jerusalem artichoke |
|
|
Eggplant |
Cherries |
Leek |
|
|
Endive |
Chives |
Lettuce |
|
|
French bean |
Climbing bean |
Mulberry |
|
|
Garlic |
Corn |
Mushroom |
|
|
Gooseberry |
Courgette |
Mustard |
|
|
Horseradish |
Crab apple |
Onion |
|
|
Kale |
Cucumber |
Parsnip |
|
|
Lemon |
Currants |
Peach |
|
|
Lentil |
Endive |
Peas |
|
|
Lettuce |
French beans |
Pecan |
|
|
Marrow |
Garlic |
Pepper |
|
|
Mulberry |
Grape vine |
Plum |
|
|
Mustard |
Grapefruit |
Raddish |
|
|
Olives |
Horseradish |
Spinach |
|
|
Onions |
Jerusalem artichoke |
Sweet corn |
|
|
Parsley |
Kale |
Sugar beet |
|
|
Parsnip |
Kohl rabi |
Tomato |
|
|
Peach |
Leek |
Turnip |
|
|
Pear |
Lemon |
Watercress |
|
|
Pea |
Lentil |
|
|
|
Pepper |
Lettuce |
|
|
|
Pineapple |
Lima bean |
|
|
|
Plum |
Marrow |
|
|
|
Potato |
Melon |
|
|
|
Pumpkin |
Mulberry |
|
|
|
Raddish |
Mushroom |
|
|
|
Raspberry |
Mustard |
|
|
|
Rhubarb |
Olive |
|
|
|
Rosemary |
Onion |
|
|
|
Runner bean |
Orange |
|
|
|
Rye |
Parsley |
|
|
|
Sage |
Parsnip |
|
|
|
Shallots |
Pea |
|
|
|
Soyabean |
Peach |
|
|
|
Sprouts, brussels |
Pear |
|
|
|
Squash |
Pecan |
|
|
|
Strawberry |
Pepper |
|
|
|
Swede |
Plum |
|
|
|
Sweet corn |
Pumpkin |
|
|
|
Thyme |
Quince |
|
|
|
Tomato |
Raddish |
|
|
|
Turnip |
Raspberry |
|
|
|
Watermelon |
Rhubarb |
|
|
|
|
Runner bean |
|
|
|
|
Salsify |
|
|
|
|
Scorzonera |
|
|
|
|
Shallot |
|
|
|
|
Soyabean |
|
|
|
|
Spinach |
|
|
|
|
Squash |
|
|
|
|
Swede |
|
|
|
|
Sweet corn |
|
|
|
|
Swiss chard |
|
|
|
|
Thyme |
|
|
|
|
Tomato |
|
|
|
|
Turnip |
|
|
|
|
Watercress |
|
|
|
|
Watermelon |
|
|
|
|
|
|
|
pH Plant Preference Charts
More on Plant pH…
Identifying Your Soil Type
How pH Affects Plant Foods
Raising Soil pH
Lowering Soil pH
3 thoughts on “Soil PH Preferences for Garden Vegetables”