It’s important to measure the pH of your hydroponic garden on a regular basis. Plants are not able to take in nutrients when your nutrient water falls out of a certain pH level. Most plants prefer a pH level that is slightly acidic, around 5.0 to 6.5. To get the most out of your plants its best to tailor the pH to the plant your growing.

adjusting pH

 

Recommended pH Level By Plant

Fruit Crop pH Vegetable Crop pH
Apple 5.0-6.5 Asparagus 6.0-7.0
Banana 5.5-6.5 Basil 5.5-6.5
Blackberry 5.5-6.5 Beans 6
Blueberry 4.0-5.0 Broccoli 6.0-6.5
Cantaloupe 6 Cabbage 6.5-7.0
Cherry 6.0-7.5 Carrots 6.3
Grape 6.0-7.5 Cauliflower 6.0-7.0
Mango 5.5-6.5 Celery 6.5
Melon 5.5-6.0 Chives 6.0-7.0
Peach 6.0-7.5 Cucumber 5.5-6.0
Pineapple 5.5-6.0 Eggplant 5.5-6.5
Plum 6.0-7.5 Fodder 6
Raspberries 5.8-6.5 Garlic 6
Strawberries 5.5-6.5 Kale 6.0-7.5
Watermelon 5.5-6.0 Lettuce 5.5-6.5
Mint 6.0-7.0
Onions 6.0-6.7
Pea 6.0-7.0
Peppermint 6.0-7.0
Peppers 5.5-6.5
Potato 5.0-6.0
Pumpkin 5.5-7.5
Spinach 5.5-6.5
Squash 5.0-6.5
Tomato 5.5-6.5
Zucchini  6.0

If you discover your pH level is our of range then you should correct it immediately. Adjusting pH is an easy fix.

About the Author: NoSoilSolutions

My name is Michael and I'm all about simple how-to hydroponic gardening! I believe hydroponics gives anyone the opportunity to have a garden, no matter where they live.

2 Comments

  1. Jose June 16, 2020 at 12:54 pm - Reply

    Very clear explanations. Thanks

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