Bok Choy: Will it grow in Louisiana? Every year I like to try to plant something new and small bok choy plants was something I noticed in the garden center. Why not try this vegetable, I mused. Well, my transplanted seedlings grew well–both in the fall and early spring–so I’ve got lots of bok choy to cook with. This is a cool weather plant, so time is running out to plant it in our gardens in March. Here is some that I planted last fall which lasted through the winter.