Plant the henbane this year... If you get the seed within the next 3/4 weeks then plant. Henbane typically grows over a 2 year period, a rosette of very large sticky leaves in the first year, and in it's second year it will flower with the snaking stems. Henbane doesn't like water logged soils. It loves nutrient rich soil, it's even been seen growing on rubbish dumps.
Deadly nightshade can grow into a large bush, but often it's found only as small shrubs sometimes not much bigger then habanero bush deadly nightshade prefers chalky soils in the wild.
Full to partial shade for the deadly nightshade.
Full sunshine for the henbane.
As is fairly typical with a lot of solanaceae both like disturbed soils.
Deadly nightshade can grow into a large bush, but often it's found only as small shrubs sometimes not much bigger then habanero bush deadly nightshade prefers chalky soils in the wild.
Full to partial shade for the deadly nightshade.
Full sunshine for the henbane.
As is fairly typical with a lot of solanaceae both like disturbed soils.