In taking time to read the news this week, I saw this headline that made me stop and take notice: “Beware of plant that can cause blindness.” Well, as a gardener, I had to click on the link and read that article! According to health officials in Michigan, a plant called “Giant Hogweed” (what a name!) recently discovered in that state can cause painful bruises, burns and blindness. Growing up to 18 feet tall, Giant Hogweed (top, at right) is photo-reactive, meaning that in sunlight it begins to burn. “When the plant touches human skin, it can cause small fluid-filled vesicles” that can develop into permanent purplish-black scars and blindness if it comes into contact…