Causimomancy

Causimomancy is another variation of botanomancy. It draws omens from the ashes produced by the burning of plants and trees. Deriving its name from the Greek word kaustos (meaning “burned”), this method of divination also draws omens from the rate at which a plant placed in a fire burns. Traditionally, if a plant smoldered and burned slowly or failed to burn altogether, this was taken as a bad omen. But if it burned rapidly, the omen was good. - Herbal Magick
~Citrine~