Also tomato leaves can yellow at the bottom due to over watering. Sometimes this can not be helped due to Mother Nature. This is why it is important to have well-draining soil, and to use a good mulch around the plants. Using compost, or a transplant mix, in your garden soil will help if drainage is an issue.
Scientific Name(s): Liatris spicata. Abundance: uncommon. What: root/tuber. How: roasted. Where: open fields, landscaping. When: fall, winter. Nutritional Value: calories. Edible gayfeather tuber.
The Grand Canyon and Continental Drift. Continental drift is a concept that was originally developed in 1912 by a German meteorologist by the name of Alfred Wegener. Some of the key facts that he used to support his theory is the shape and fit of the continents and the distribution of similar fossils and rock layers around the planet. Based on his observations Wegener proposed that all of todays modern continents were once part of a supercontinent, which is today known as Pangea.