It is likely that the herbs would benefit from a broad-spectrum foliar spray such as Triple Ten which contains NPK, trace elements and a rich blend of biologicals including kelp, fish, fulvic acid and worm castings. Sulphur is also particularly important for the taste of herbs. This will best be obtained through foliar spraying potassium sulphate (~18% S) or magnesium sulphate (~13% S). K-Carb-35 (35% K) is also a popular product for improving the shelf-life of herbs.

Ideally, a nutrient analysis should be conducted to pinpoint plant requirements – NTS can prepare a recommendation based on leaf test data if available (contact NTS for further information on our Plant Therapy service). You may also be interested in our in-field monitoring tools. It may be an option to set up a communal set of monitoring tools for your group of herb growers to enable you to monitor your crops, address nutrient requirements and ensure optimum quality of your exported herbs.