The process of inducing the vibrant red coloration in poinsettia plants, scientifically known as Euphorbia pulcherrima, relies on manipulating the plant’s exposure to light. This change in bract color, often perceived as the flower, is a photoperiodic response. An extended period of uninterrupted darkness is the primary factor that triggers the transformation from green to red.
Achieving the desired bract color is crucial for commercial poinsettia growers as it directly impacts market value and consumer appeal. The plant’s association with the holiday season further reinforces the importance of understanding and controlling this color change. Historically, this technique has allowed growers to produce poinsettias that bloom perfectly in time for seasonal demand, maximizing profitability and ensuring availability for consumers.
