| Herb | Optimal pH | Optimal EC |
|---|---|---|
| Anise | 5.8-6.4 | 0.9-1.4 |
| Basil | 5.5-6.0 | 1.0-1.6 |
| Catnip | 5.5-6.5 | 1.0-1.6 |
| Chamomile | 5.5-6.5 | 1.0-1.6 |
| Chervil | 5.5-6.0 | 0.8-1.8 |
| Chickory | 5.5-6.0 | 2.0-2.4 |
| Chives | 6.0-6.5 | 1.8-2.4 |
| Cilantro | 5.8-6.4 | 1.2-1.8 |
| Coriander | 5.8-6.4 | 1.2-1.8 |
| Dill | 5.5-6.4 | 1.0-1.6 |
| Fennel | 6.4-6.8 | 1.0-1.4 |
| Lavender | 6.4-6.8 | 1.0-1.4 |
| Lemon Balm | 5.5-6.5 | 1.0-1.6 |
| Mint | 5.5-6.0 | 2.0-2.4 |
| Mustard Cress | 6.0-6.5 | 1.2-2.4 |
| Oregano | 6.0-7.0 | 1.8-2.3 |
| Parsley | 5.5-6.0 | 0.8-1.8 |
| Rosemary | 5.5-6.0 | 1.0-1.6 |
| Sage | 5.5-6.5 | 1.0-1.6 |
| Tarragon | 5.5-6.5 | 1.0-1.8 |
| Thyme | 5.5-7.0 | 0.8-1.6 |
| Watercress | 6.5-6.8 | 0.4-1.8 |