An Experimental study on the impact of interior lighting conditions on plant growth

Abstract

This study investigates various intensities of artificial light from LEDs that could affect houseplants' growth and support biophilic interior design in residential apartments. Three species, including Aglaonema modestum, Philodendron hederaceum, and Alocasia amazonica, were exposed to low (20W), medium (36W), and high (50W) LED light continuously for 24 hours over a 14-day period in a controlled apartment-like setting. Visual observations were made on leaf health, new leaf emergence, general growth, and visible stress reactions. Outcomes demonstrated that Aglaonema and Philodendron grew well under low and medium light, maintaining healthy foliage with minimal stress, while Alocasia showed clear signs of stress under medium and high intensities. High-intensity lighting also triggered the infestation of Aglaonema with scale insects. The overall findings emphasize the adjustment of artificial lighting intensity to the needs of a specific species. This study gives practical information in residential interior design by enhancing plant health, aesthetic value, and identifying factors in the physical environment that may impact stress in plants indoors.