Put some serious photosynthesis in your pocket and get wholeheartedly back to nature with the help of this amazing tree on the end of a keyring. Yes. We'll enunciate that one more time. It's a keyring. With a real, live, growing miniature plant on the end of it. Surreal. Yet truly inspired.

Safely cocooned in its own protective biosphere, and secured in a nutrient-enriched soil base, the plant needs watering just like any other plant, but makes a powerful environmental statement to all who see it, as you take your pint-sized garden with you wherever you go.

Now, whenever a chum should question your green credentials, all one needs to do is just whip out one's tree to silence the blighter once and for all.

Even if topiary isn't quite your scene, this is a low-cost, low-impact and low-intervention alternative to having to keep a garden. It contributes to the world's stock of oxygen, recycling CO2 in the usual fashion, and, as long as it receives the requisite amounts of light, air and water, should provide a lifetime of greenfingered loveliness in your pocket.

Splendidly ecological. And that's a very convenient truth.