Ask Ruth: Powdery Mildew

Ask Ruth: Powdery Mildew

Dear Ruth, The leaves on my squash have whitish spots and are starting to look a little shriveled. They were looking great, and now all of the sudden they look bad. It is on the stems too, and it seems to be spreading. What is this and what can I do? Tyler West...
Basic Plant Nutrition

Basic Plant Nutrition

Basic Plant Nutrition: NPK and other nutrients Plants need sun and water to grow, right? Yes, of course. But in addition to non-mineral nutrients from the sun and water, plants also need a buffet of essential mineral nutrients in order to thrive. Mineral nutrients are...