Marigold (Tagetes erecta L.) is one of the most important flower crops commercially grown in India. Marigold gains popularity among the flower growers due to its easy cultivation, wide adaptability to diverse soil and climatic conditions, habit of profuse flowering, and short duration to produce marketable flowers. The yield and quality of marigold flowers may be improved by espousing precise nutrient management practices which include the judicious and combined use of organic, inorganic and bio-fertilizers. Growth regulators are used in small quantity to enhance plant physiological processes greatly, which may help greatly to increase the yield and quality. Further, plant growth regulators like Gibberellic acid and NAA play vital role in improving growth and flowering in Marigold.