Ideal pH Ranges for Vegetables

Finding the Right pH Ranges for Your Vegetables

Although most garden soils have pH ranges between 4.0 and 8.0, most of the garden vegetables we love grow best in pH ranges between 6.0 and 7.0. Instead of guessing what your veggies need to succeed, use the table below to find the right pH value for the vegetables in your garden.

Vegetable

pH Range

Beans (pole) 6.0 – 7.5
Beets 6.0 – 7.5
Broccoli 6.0 – 7.0
Brussels sprouts
6.0 – 7.5
Cabbage
6.0 – 7.5
Carrots 5.5 – 7.0
Cauliflower
5.5 – 7.5
Celery 6.0 – 7.0
Corn 5.5 – 7.5
Cucumber 5.5 – 7.0
Edamame
5.8 – 6.5
Eggplant 5.5 – 6.5
Garlic 5.5 – 7.5
Gourd 6.5 – 7.5
Kale
6.0 – 7.5
Kohlrabi 6.0 – 7.5
Lettuce 6.0 – 7.0
Melon 5.5 – 6.5
Okra 6.0 – 7.5
Onion 6.0 – 7.0
Peanuts 5.0 – 6.5
Peas
6.0 – 7.5
Peppers 5.5 – 7.0
Potato 4.5 – 6.0
Radish
6.0 – 7.0
Spinach 6.0 – 7.5
Squash, summer 6.0 – 7.5
Squash, winter 5.5 – 7.0
Sunflower 6.0 – 7.5
Sweet potato 5.5 – 6.0
Tomato 5.5 – 7.5
Zucchini
6.0 – 6.5

What is pH and Why do pH Ranges Matter?

Soil pH is a measure of the acidity and alkalinity for a given sample of soil. It is measured along a pH scale that runs from 1 (the acidic end) to 14 (the alkaline) end. pH values of 7 signify that a soil sample is neutral.

Was there a pH value you were looking for that I missed? Let me know and I'll add it to the list!

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