This flowering succulent, often called Crown of Thorns, is adapted to dry environments. Its thick stem stores water while sharp spines help protect the plant from herbivores, and the small white blooms 5x Heavy Duty 30L Plant Pots Large Size 40cm 15.7" Plastic Planters for Outdoor Plants, Vegetables & Flowers Grow Tub Container Handles Etsy Container Gardening & Consistent Watering Bonnie Plants Where To Buy Seeds For Your Vegetable or Flower Garden Monochromatic calla lily with dark background photo Free Plant Image on Unsplash