Plant kidney beans in a cup to kickstart your urban garden! Ever thought a small kitchen could host thriving plants? A cup, soil, light, and water is all you need. Urban spaces can be green and you don’t need heaps of soil or huge plots. Curious how beans grow right on your windowsill? Make it a fun family project too! Kinda cool, right? Watch your beans sprout and enjoy a tiny green oasis in no time.