Meet Solanum atropurpureum, also known as Five-Minute Plant, Malevolence, or Gates-of-Hell. It’s a tender perennial eggplant relative that can be grown as an annual here in Wisconsin . I started several from saved seed this February, and they’re about a foot or so tall now. As they grow, the spines get larger, and they turn purple-black. I’ll post pics later this summer to show their progress.