How to get hearth essence?

How do i get hearth essence ? i have no idea. Can someone explane?

You get it by harvesting a Hearthbud Flower, which you can plant some after you get a Geomancer.


You naturally get a quest later in game, where the bunnies make one of your people a gemonacer, and you get some then. Also hearth essence can be harvested from hearth flovers (im not sure if thats the name of the plant)

I think the name is earthbud or hearthbud