When Succulents Turn Yellow Yellow Succulents Yellowing Succulents 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. Container Plant Irrigation: How To Irrigate Container Gardens Gardening Know How As the season changes, here are our top tips for harvesting poppy seeds:, Save this video to remind you next time you are out in the garden! , You can just leave poppies in your garden and let them