you get one from my 3th pic in my guide but just that for emily potion theres no more but maca root always appear there after you sell it or eat it and its worth 1000GI have this same problem. I've gotten 100% of all content (scenes, hearts, etc.). I have an unlimited supply of the rest of the 3 plants. but can't find philweed.
link to my update 32 in my signature