I’ve never had a green thumb. The best I could do was to make mung bean sprouts (and even then that was just soaking them in a damp cotton ball). I wanted to have an adorable succulent so badly. But after killing off two innocent little cacti, I’ve decided to give it a rest. I didn’t want to take care of one anymore but I still liked looking at them, you see? So when I had the chance to go to Singapore a few months ago, I freed up some time to drop by Gardens by the Bay. Singapore isn’t exactly the “greenest” destination when you’re looking for a nature getaway. The country is better known as a concrete jungle with its sleek and massive office buildings and housing structures. But what Singapore lacks in natural wonders, they make up for it with incredible ingenuity. As a part of the…