Most leaves are green due to the pigment chlorophyll, but other colours, such as oranges, reds and blues, may also be present due to less efficient photosynthetic pigments like anthocyanins, carotenes ...

If you are looking for a reliable supply of leafy lettuce for quick salads, look no further than your countertop or sunny window. Growing hydroponic lettuce indoors is about the easiest thing you can ...