I collect iron filings from a local workshop and scatter them around my citrus trees with great success, have never tried it on the herb though . A friend of mine swears by watering seedlings with CocaCola , it definitely does something but Its just to kooky for even me to try,hahaha.Maybe its...
Coffee grounds make an excellent soil conditioner but if overused can turn soil acidic.
During mango season i keep all skins ,seeds and put them in a plastic barrel full of water.This causes them to ferment.I dilute this solution 50/50 with water and feed the girls with it during the flowering...