Does not need much encouragement and is considered a noxious weed
Germination is slow, and can be hastened by soaking the seed or scratching the skin
Use compost with 50% vermiculite to increase drainage
Henbane is happy in poor well drained ground as it grows naturally in costal shingle, disturbed, bare and cultivated land
Henbane is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.Henbane seeds are round capsules almost fully enclosed by a calyx, opening when ripe by a small lid
These estimates for how long Henbane takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.
Average days | Min days | Max days (0)
Average days | Min days | Max days (0)
Average days | Min days | Max days (0)
Henbane has been known from ancient times and part of the British Pharrmacopoeia since the beginning of the 19th centuary
Black henbane
Hyoscyamus niger L.