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Herb pH/PPM/cF chart for Hydroponic Gardeners

These nutrient pH and TDS values are for hydroponic gardening only.
Herbs pH cF PPM
Basil 5.5-6.5 10-16 700-1120
Chicory 5.5-60 20-24 1400-1600
Chives 6.0-6.5 18-22 1260-1540
Fennel 6.4-6.8 10-14 700-980
Lavender 6.4-6.8 10-14 700-980
Lemon Balm 5.5-6.5 10-16 700-1120
Marjoram 6.0 16-20 1120-1400
Mint 5.5-6.0 20-24 1400-1680
Mustard Cress 6.0-6.5 12-24 840-1680
Parsley 5.5-6.0 8-18 560-1260
Rosemary 5.5-6.0 10-16 700-1120
Sage 5.5-6.5 10-16 700-1120
Thyme 5.5-7.0 8-16 560-1120
Watercress 6.5-6.8 4-18 280-1260
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