Tradescantia Zebrina Plant Jungle I thought I was a 'hopeless' plant killer, then I used these 3 Android apps State Grid Corp. of China commissions world's largest pumped storage hydropower plant Philodendron Fuzzy Petiole The Regular Plant Co. Plant your poppies when it's cold! Poppy seeds require a period of cold to germinate and grow, so they generally do best when planted in the late fall or early spring.