Believe it or not, I ordered Castor Oil for a plant which is more than 70 years old. I have an angelhair fern which has been handed down from my great grandmother and I am 64. One of my aunts has part of this plant and told me that a good food for it was pure castor oil. Truthfully, I could not believe even a plant could tolerate castor oil, but since dosing my fern with it, it has turned greener and has added inches to the growth. I am very pleased with iHerb and will certainly order again. Thanks Freda