
Hovering a herb or mineral on the minimap shows your skill and the skill required to gather it. For example, (47/1) means 47 is your Herbalism and 1 is the skill needed to pick that herb.

Herb and mineral names are colored by how hard they are to gather: red if you cannot pick them yet, then orange, yellow, green, and grey once they are trivial.

It works in the world too. Hovering a herb or mineral on the ground shows the same skill numbers and colors as the minimap tooltip.

Open the settings with Esc, then Options, then the AddOns tab, or type /gst in chat. From there you can turn each feature on or off.

On WoW Forever, dying turns off Find Herbs and Find Minerals. This reminder stays up until you turn tracking back on, and you can disable it in the settings.

This Mageroyal can be picked. Your Herbalism is 52, and Mageroyal requires 50.
