Teresa, you'll earn an acorn each time you add your first picture of a flower, or leaves, or an entire plant for each cultivar. And there are other ways to earn acorns too. Then you can use your acorns to "buy" special deals that Dave and Trish come up with. Their first was an All Things Plants T-Shirt and Coffee Mug for 100 acorns, which was only offered for a short time (like two or three weeks), so you might want to start adding pictures to the database and building your stash so you can take advantage of the next one!
