Blackthorn (Prunus spinosa): In folklore, blackthorn is believed to have connections with dark forces and bad luck
Cactus (certain species): In Feng Shui, spiky plants like cacti are thought to generate negative energy and hinder the flow of positive energy or “qi” in a space
Dead or decaying plants: Plants that are dying or have wilted are sometimes associated with negative energy, as they may represent decay and stagnation
Stinging Nettles (Urtica dioica): Due to their painful stings and aggressive growth, stinging nettles have been associated with negative energy