agriculture baking calories Collard greens cooking diet flower flowering plant food fruit gardening healthy leaf Leaf Vegetable low_calorie market nature organic pieplant plant plants produce rhubarb Spring greens vegetable vegetables vegetarian veggie Asteraceae (Compositae) bunch Cichorium endiva close-up endive escarole europe farming field freshness green Green Leaf Lettuce Healthy Eating lactuca sativa Leaf Lettuce leafy lettuce macro nutrient nutrition pant salad white background drops water fork drop tree covered frost covering frost protection grow organic endive salad field plantation row rows young eruca Nyberg rocket sativa tomato tomatoes leaves spinach lambs mache