If there’s one plant — one group of plants — that equally amazes and weirds out visitors to our place, it’s our collection of carnivores. We’ve written about them before: how some entrap their prey passively with intoxicating nectar and slippery surfaces, others with chomping showmanship,...

“Feed me, Seymour,” the line goes, originally uttered by the neediest plant in history. Little Shop of Horrors gave us (both!) mega nightmares as kids. If only we'd known that someday we would grow to enable our own crop of bloodthirsty carnivores. We brought them home...