How to Get Rid of Weeds That Grow Through Cracks in the Pavement
by Elizabeth Yuko from Lifehacker on (#5Y0NJ)
When we first learned about plants in school, they seemed so straightforward: Make sure they have the right amounts of soil, sunlight, and water, and they'll grow. Then we learned that it's a little more complicated than that, and many different factors determine whether and how well a plant will grow.