clipped from: faqs.ign.com   
38) Lotus + Lotus + Rose = "He/She feels fertile"

40) Lotus + Lotus + Cactus = He/she feels much healthier(Healing potion)

41) Lotus + Cactus + Black Orchid = "Is everything slowing down" Super speed

42) Lotus + Cactus + Rose = "He/She feels light and springy" Solution for one of the door keys, Jump higher

50) Rose x 3 = "He/She feels romantic"

51) Cactus x 3 = "He/She feels better"

25) Pitcher Plant + Pitcher Plant + Lotus = He/She beels better

26) Pitcher Plant + Pitcher Plant + Cactus = He/She beels better

29) Pitcher Plant + Rose + Lotus = She feels very fertile

33) Pitcher Plant + Cactus + Lotus = "He/She feels better"

34) Pitcher Plant + Black Orchid + Black Orchid = "Carrying a vial to the ocean" Solution for sharks