All parts of henbane are very poionous. Nevertheless, for centuries it has been used as a treatment and cure for various ailments. And it remains in use for medicinal purposes to this day.
As a poison, one of the best known victims of henbane was the wife of Dr Crippen: he is said to have used an extract of the plant to kill her.
Some people find henbane flowers attractive. They’re certainly fascinating in a slightly ghoulish kind of way:) It’s a biennial plant which can be grown from seed, preferring a light, calcareous soil. But you really must be ultra-cautious if you do grow it: it’s poisonous to pets and livestock too, not just humans; and some books even claim that just sniffing its bruised leaves can cause you to faint. Indeed one of the Welsh names for the plant is Llewyg yr Iar – meaning to make hens faint.