Monkshood

Wolfsbane

where: cottage gardens, shade gardens, wild in mountain regions across europe and north america

• toxic part: ALL parts, including just touching the plant

• what happens: aconitine alkaloid — paralysis of nerves, heart arrhythmia, respiratory failure. SKIN ABSORPTION ALONE can kill

• timeline: symptoms in minutes via skin contact, can be fatal within hours

• common mistake: gardeners weeding without gloves (multiple documented deaths from skin absorption while gardening), foragers confusing roots with horseradish

• emergency: poison control + ER, but very hard to treat — limited antidote options

• historical note: used historically for poisoning arrows, in ancient roman criminal poisonings, and in nazi suicide protocols. probably the most legendarily lethal garden plant
  
  kills you through skin absorption while you're weeding it. sold as a "cottage garden classic" smh.