Pet Society brought in a tiny set of Earth Day items into its Garden store last week (in the Furniture section), which includes a "I Heart Earth" Teddy Plushie for 750 Coins, a Playfish Eco Bag for 100 Coins, and an Eco Seed for 600 Coins. The Teddy and the Eco Bag can also be found at the Market store (in the Toys and Collectable section).
The Eco Seed grows into an Eco Tree, which has light blue foliage, and yields Eco Fruit bearing a design that makes it resemble the Earth itself. All trees take 3 days, or 72 hrs. to grow. Plant your Eco Tree today, and you'll be just in time for Earth Day on April 22nd!