Dandelions are so wide-spread that it is extremely difficult to find places where they don’t grow. They are hardy, drought tolerant, heat tolerant, cold tolerant, and even grow in poor soil that won’t support many other kinds of plants. Where they aren’t native, they’ve been introduced, intentionally or accidentally, so about the only places they don’t grow are the polar regions and the driest and hottest deserts. Dandelions aren’t native to America, yet they grow in every state, as well as in Canada and Mexico.