Himalayan balsam is from the western Himalayas and was brought to Britain in the 1800s by plant hunters who liked its pink flowers, which resemble orchids, and exploding seed pods that can project ...

The Himalayan balsam is known as a 'dangerous' species thanks to its unusual seeds. Each plant can produce more than 2,500 seeds which can stay alive for up to two to three years. When touched ...