Baby bok choy is one of the most versatile crops of the garden. It grows exceptionally quickly, tolerates both cold and heat, and can be sown in succession for crops nearly all season long. The swooping, vase-shaped base forms a beautiful whorl of thick green petioles, softening to a sweet, ambrosial flesh when cooked. Enjoy them all season: infant choys herald the start of spring; thick-petioled bunches grill beautifully in mid-summer; and toddler boks perk up in the chill of fall.