Veratrum nigrum (Black false Hellebore)
This remarkable and slightly mysterious hardy perennial grows throughout Europe and Asia, even high up in the Alps and other mountainous regions. Its medicinal use varies from ‘useful to fight high blood pressure’ to ‘helpful when ‘mental focus is lacking’. Anyway, beware, because the plant is extremely poisonous, causing cardiac arrhythmia. Deadly dosage can be as low as 0.6grams! So, please do not consume roots, foliage, flowers or seeds out of the box. It might kill you before you even can tell the doctor what you just did. Price tag is there because I run a perennial plants nursery.
Photo: foliage 2019, on our patio.