Black henbane (Hyosciamus niger)

Care, watering, light and tips for Black henbane on Floravia.

Quick facts

About Black henbane

Black Henbane (Hyoscyamus niger) is an annual or biennial herbaceous plant, belonging to the Solanaceae family, known for its sticky foliage and pale yellow, tubular flowers with purple veins. Often found in disturbed or waste ground, and although toxic, its somber and mysterious appearance can add a 'witch's garden' or botanical touch to controlled spaces, always with caution. It is a species of historical and ethnobotanical interest.

Native range

Eurasia and North Africa

Care tips

It prefers full sun to partial shade and well-drained soils, even poor or calcareous ones. Watering should be moderate; it is quite drought-tolerant once established, but overwatering can lead to root rot. It does not require regular fertilization, and a common mistake is trying to grow it in rich, moist soils, which does not favor its development. Due to its toxicity, always handle with gloves and keep it away from children and pets.

How to save a dying Black henbane

Warning signs
Wilted, yellowing or brown leaves, premature flower or immature fruit drop.
First aid
Check drainage and substrate moisture. If dry, water moderately. If waterlogged, remove excess water and improve aeration.
What kills it
Overwatering rotting roots or lack of light. Sensitive to sudden temperature changes.
Can it be saved?
Yes, if acted upon quickly. Remove damaged parts and correct watering or light issues.

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