10 Worst Plants for Your Allergies
food chemical sensitivity :: Article Creator Ragweed Allergy Ragweed is a weed that grows all over the United States. It's especially common in the Eastern and Midwestern states, and Alaska is the only state where it doesn't grow. It triggers ragweed allergy symptoms in many people. Ragweed is an annual plant, so it grows for only one season. The plants start to grow in the spring, then flower in August or September in most parts of the U.S.. The particles of pollen from ragweed plants are tiny and easily carried around by the wind. A single ragweed plant can produce a billion grains of pollen. Ragweed allergy season can run from late summer through November, depending on your location. (Photo Credit: iStock/Getty images) What does ragweed look like? Ragweed plants have spiky flowers that are dull green or yellowish, and the stems of the plant look hairy. The leaves are thin and divided, with lobes or "teeth" som