Tatsoi (Brassica rapa var. rosularis), also known as "spoon mustard" or "rosette bok choy," is a versatile and nutritious leafy green that has gained popularity in recent years. Belonging to the Brassicaceae family, tatsoi is a cousin of bok choy and mustard greens. Its mild, mustard-like flavor and tender texture make it a favorite in salads, stir-fries, and other culinary creations. Cultivating tatsoi in your garden is a rewarding experience, and this comprehensive guide will walk you through the steps to successfully grow this nutrient-rich green.