This experiment was conducted to investigate different strategies for alleviating cold stress in marigold for a period of two consecutive years (2021-2022 and 2022-2023) at the Centre for Protected Cultivation Technology (CPCT), ICAR-Indian Agricultural Research Institute, New Delhi. In this study, the marigold var. Pusa Narangi Gainda seeds were sown at three distinct sowing dates and seedlings were grown under two different growing conditions with the use of several treatments and their respective combinations. The parameters pertaining to growth and flowering were recorded and evaluated. Among distinct growing environments, the plants grown inside a low polytunnel were seen to exhibit superior growth compared to those under open field conditions. Whereas, in terms of the sowing date, October 15th recorded maximum in growth and flowering characteristics. In the context of various treatments, it was discovered that the combination of Chito Oligosaccharide at a concentration of 300 ppm with Arbuscular mycorrhiza showed favourable results as compared to control and other treatments. This study demonstrates the positive impact of utilizing low polytunnels under various sowing dates and treatments on the growth and flowering of marigold plants.