There’s no denying it: In the world of home decor, plant-filled pads are where it’s at. Particularly with the impending arrival of spring, every home website and store window display is rife with lush leaves, tropical trees, and prickly, sculptural cacti. But as much as we love the look of going green, the truth is that not everyone is a natural-born indoor gardener — and plants that were lively at your local nursery can quickly turn black without the proper care and sunlight. Too bad, so sad.