“Baby” leaves can be picked when just 2” (5cm) long. Follow the package directions to determine how much, and how often, to feed. Florida Broadleaf Mustard is a traditional favorite in Southern cuisine. This is a Japanese type of Mustard which has large savoyed leaves which are Maroon with Chartreuse undersides. Purple-red leaves with a delicious strong, sharp, almost garlic-like, mustard flavor. The Giant-leafed Red Mustard, also known as 'Japanese Mustard', has purple-red savoy leaves with light green undersides and a strong, sharp, peppery taste. Days to Maturity: 20 to baby, 45 to full size. Red mustard greens are grown for fresh eating, as a cover crop with pesticide qualities, for feedstock and as dual purpose ornamental greens in edible gardens. All-America Selections winner for 1935 and long-time southern favorite with mild, mustardy flavor.