To those that have trouble making potions:
Potions making is under the section planting. You will need to do the quest under 栽培技能習得以及栽培相關任務 this heading on this
http://prius.zone.gamebase.com.tw/zone/prius/wekey/Anima10-20%E7%B4%9A%E4%BB%BB%E5%8B%99/ website.
The most important part of this planting quest is to complete the mushroom harvesting quest whereby you will need to fight a boss. After that once you go back to your private island, your plant npc should give you 3 more quests, these 3 quests are the ones that will give you the diff types of plants. It is split by elemental earth, water, fire.
The 3 elemental quests are very identical, after you get one, place it in your house slot and it will become like this pic.
This is what is shows what you talk with the npc
This is the list of plant crafting you can do
This is the skill lvl for your crafting