A well illustrated book or two is a helpful, necessary companion. Naming herbs - both the common and Latin names should be used to differentiate species. The Latin name is distinctive. Locations to harvest - never in areas treated with herbicides, pesticides or other contaminants, such as lawns, fields, and roadsides. Time of collection - this may be spring, summer, fall or winter depending on the parts to be gathered.
Time of day is a major consideration for aerial parts.
These should never be collected when damp either from rain or dew as this can result in mold formation, rendering the harvest useless for medicinal purposes. Roots are usually gathered in early spring before new growth is established or in fall after aerial parts have died down. Drying method - best method for most plants is air drying in a well ventilated room or shed, aided by a dehumidifier if available, and in gentle heat, not over 35 degrees Celsius and never exposed to the sun. If herbs are overheated, the parts will discolor and become darkened, in the process will loose much of their medicinal value thus not usable. Once dried - herbs should be dated, labelled, and stored in an area not exposed to light, moisture, or heat.