Botanist Leves Locations:
In the leveling guide below, I recommend doing Fieldcraft Leves for some of your levels. However, only specific camps offer botanist.
Here's a list:
Level 10 leves: Bentbranch Meadows - Central Shroud (22, 22)
Level 15 leves: The Hawthorne Hut - East Shroud (17, 27)
Level 20 leves: Quarrymill - South Shroud (25, 20)
Level 25 leves: Quarrymill - South Shroud (25, 20)
Level 30 leves: Costa Del Sol - Eastern La Noscea (32, 30)
Level 35 leves: Observatorium - Coerthas Central Highlands (26,28)
Level 40 leves: Whitebrim Front - Coerthas Central Highlands (12,16)
Level 45 leves: Saint Cornach's Find - Mor Dhona (30,12)
Note that in order to unlock level 15 and beyond leves, you have to first complete the “Leves of ‘Camp Name’” quest offered by the Levemete. This quest can only be completed by a Discipline of War or Magic class. Once you complete this quest, Fieldcraft leves for that specific camp will be unlocked.
More will be added to this as it is learned, but for now this is the most that I am personally able to provide in way of help to anyone leveling this discipline.