How to Grow Vegetables Using a Hydroponic System Arugula Butter Crunch Cherry Tomato Cucumbers Kale Purple Bok Choy Snap Peas Bok Choy Butterhead Mini Eggplant Red Tatsoi Romaine Sweet Peppers Swiss Chard Watercress Banana Peppers Breen Bull's Blood Bunching Onions Burrito Pepper Cardinale Celery Collard Greens Dragon Beans Goliath Pepper Endive Green Beans Fairytale Eggplant Flashy Trout Back Green Mustard Green Tatsoi Hon Tsai Tai Hungarian Hot Wax Pepper Jalapenos Mini Cauliflower Mini Pumpkin Purslane Purple Beans Italian Parsley Purple Kohlrabi Pink Celery Kale Lacinato Perpetual Spinach Radicchio Red Amaranth Red Mustard Red Oak Leaf Lettuce Red Romaine Red Sails Red Salad Bowl Matilda Monte Carlo Red Sorrel Rouge d'Hiver Tokyo Bekana Wasabi Greens Thai Eggplant Yellow Cherry Tomato Yellow Beans