Vegetable plants turn yellow due to nutrient deficiencies, including a lack of calcium, magnesium, potassium, iron, zinc, copper, sulphur or manganese. Purchase a fertilizer containing these nutrients to get rid of vegetable yellowing.
About this Author
Megan Smith has been a freelance writer and editor since 2006. She writes about health, fitness, travel, beauty and grooming topics for various print and Internet publications. Smith earned a Bachelor of Fine Arts in writing from New York University.