Light is perhaps the most important consideration for optimizing plant growth in a greenhouse or vertical farm. In these horticulture environments artificial lighting is used when natural daylight is lacking or not available at all. There are several myths surrounding the specific light spectra used for growing crops and, more specifically, the use of white, green, or broad-spectrum light. This the first in a series of interviews where we turned to Signify’s Plant Specialist Esther de Beer to bust these myths about white light. In this first interview we asked the question: Does green light penetrate deeper into the canopy?