Black thumb be damned, I love filling my home with plants. Prickly cactus, chubby-leaved succulents and sprawling ivy are my favorite types of greenery. Mainly because they are the easiest to care for (Favorite Spaces Window)
Kitchen or anywhere DIY. Seems simple enough, depending on your gap between shelves, anywhere from ropes to ropes for your spacing. You could even use wider wood, just adjust your rope length to accommodate your width and height of your shelves.