Chrysanthemum (Chrysanthemum morifolium Ramat.) is an important commercial ornamental crop widely cultivated for cut flowers, loose flowers, pot plants and garden decoration. Its flowering behaviour is significantly influenced by photoperiod, temperature and environmental conditions, making crop regulation essential for achieving uniform flowering, improved flower quality and year-round production. Crop regulation involves cultural, physical and chemical practices to manipulate plant growth and flowering according to market demand. Important cultural practices include variety selection, appropriate planting time, pinching, disbudding and optimum spacing. Physical methods, such as photoperiod manipulation through artificial lighting and blackout systems, along with temperature management, help regulate flowering time. Plant growth regulators, including chlormequat chloride, daminozide, paclobutrazol and gibberellic acid are used to manage plant height, stem length and flower development. Balanced nutrition and proper irrigation further support healthy growth and flowering. Integrating these techniques enables growers to improve flower yield, quality, uniformity and economic returns while facilitating offseason production and meeting increasing market demand.