The seed pods of a lilac start out green and soft, then they harden and split open. See the pod cases on the bottom of the photo. The two at the top Emergency: dog has ingested leaves from a yucca plant about 2 hours ago. We are in the United Kingdom (england) but plant is shop bought. I have looked online and am aware Ceramic Planter Ceramic Table Vase Admired by Nature Color: Black Set of 22 Valley Green Black Duck Brand Heirloom Flower Seeds 22 Different Varieties Non GMO (Variety Deluxe Flower Garden) Amazon.com : HOME GROWN 1000+ Cilantro Seeds for Planting Indoors or Outdoors Non GMO Heirloom Herbs, Coriander Plant Seeds, Herb Seeds Collection for Herb Garden (Coriandrum sativum) : Patio, Lawn & Garden