Herbs in allotment:
-Parsley :this is aromatic, it smells good, it needs minerals and water.
-Rosemary: Romani serves to make infusions and give some meals good taste
-Oregano: it service the cook is the purple colour.
-Lavender: it smells good and it is a very beautiful plant.
This comment explains the aromatic plants quite well and the photos are just the plants that you have explained