
Keeping Cool: Planning Shade for your Garden
All plants, bar a few specific exceptions, rely on sunlight for growth. Photosynthesis is when the chlorophyll in plants (the green pigment in leaves, stems, etc.) uses carbon dioxide from the air and water in the soil to produce sugars, which the plants use to grow. But, just as you can get sunburned from too much exposure to the giant ball of gas in the sky, so can plants. Days with a high UV index and extended periods without clouds or rain can stress plants, causing sunscald, leaf burn, and dehydration....