In Ireland, poppies were considered the witch's flower and called cailleach dhearg, which means 'the red hag'.
I came upon a yard full of red hags today, after walking one of our dogs to the groomer.
I was lucky enough to see every stage of the red hag's life cycle (pictured below).
The Esoteric Poppy
All poison flowers are classically lumped together as correspondences of Saturn. But poppies thrive in the company of other plants without obliterating them, and they love to bask in the sun.