How to get the tea of Star Valley Tale?

Tea is a plant picked on a tea tree, which is grown from planted tea seedlings.

Tea seedlings are items that players can make by themselves. The formula needs to unlock Catherine's two-hearted plot, that is, let Catherine invite you to her greenhouse garden for tea (the trigger point is Pierre's shop).

Tea seedlings need 5 fibers, 5 pieces of wood and any 2 wild seeds.

It takes 20 days to grow, and then in the last week of each month, each plant will grow a piece of tea every day.