10 Fast Growing Plants to Enhance Your Garden Wire Trellis Kits for Climbing Plants, Vines and Green Wall Blikahome Your plant might be trying to tell you something! Different leaf symptoms can indicate nutrient deficiencies or care issues. Nitrogen Deficiency Yellow or pale green leaves, slow growth. Potassium Blue American Agave Americana, Century Plant Eureka Farms You've been eating the same plant your whole life, it just looks a little different . Meet the Mustard Plant . Kale, cabbage, cauliflower, kohlrabi, brussels sprouts all bred from