to get past level 20 you need to talk to a Novice Instructor for your craft in Varanas or Obsidian Stronghold and do the quest.
 Craftsman level quests
to get past level 40 you need to talk to the Adept Instructor for your craft in Varanas and do the quest.
 Adept level quests
|Mary's Trial||Alchemy||Varanas at 29.3,40.8|
|Elaborate Evidence||Armor Crafting||Varanas at 30.9,40.1|
|The Strict Instructor Blag||Blacksmithing||Varanas at 33.9,36.0|
|Missing Wing Crossbow||Carpentry||Varanas at 26.2,36.5|
|General Moti's Famous Dish||Cooking||Varanas at 48.3,25.7|
|An Exacting Attitude||Herbalism||Varanas at 42.2,22.6|
|Digging Deep||Mining||Varanas at 42.0,22.9|
|Quality Clothes||Tailoring||Varanas at 47.5,21.6|
|Learn from Wood||Woodcutting||Varanas at 42.1,22.7|
to get past level 60 you need to talk to the Master Instructor for your craft in Dalanis and do the quest.
 Master level quests
|The Essence of Alchemy||Alchemy||Dalanis at 53.4, 50.6|
|The Way of Armorcrafting||Armor Crafting||Dalanis at 52.5, 49.9|
|The Way of Weapon Forging||Blacksmithing||Dalanis at 52.7, 50.5|
|Master the Essence of Carpentry||Carpentry||Dalanis at 51.8, 49.9|
|An Unusual Way of Cooking||Cooking||Dalanis at 51.6,49.7|
|Mysterious Herbal Knowledge||Herbalism||Dalanis at 53.4, 50.3|
|Knowledge of Rare Minerals||Mining||Dalanis at 52.8, 50.4|
|The Artistic Path of Tailoring||Tailoring||Dalanis at 53.2, 52.2|
|Legendary Wood Knowledge||Woodcutting||Dalanis at 52.0, 50.0|
 Planting Quests
Planting is not part of normal crafting. you can have 6 crafts above level 20 and still do all Planting quests.
starter Planting quest:
First Time Planting
Craftsman level Planting quest:
Green Leaf Dewdrop
Adept level Planting quest:
Blooming Snow Flame Flowers