Are T5HO Grow Lights only for starting seeds and cuttings?
First you have to know some things about light in general and photosynthesis. Plants uses light as a energy source to convert carbon dioxide( CO2) into organic compounds as carbohydrates like sugar or starch, (food). This is complicated but the bottom line is that 95% of the nutrients comes from Photosynthesis converting H2O in the air, sounds crazy but look it up. Think about it as if you drink a glass of vitamins and just stand in the sun to get all the nourishment you need. That of course means that the amount of light is crucial to the development of a plant. But not only the intensity of the light is important, the quality of the light (PAR) is also vital. Read the rest of this entry