Hi Kate, acorns are the commodity used here to purchase tickets for the raffle. Click on the link to see how you can earn acorns. I've given you 5 acorns, which will buy one ticket. You can go to your profile to see how many acorns you have.
http://garden.org/special/acor...
When you go to the August raffle link below, go to the bottom of the prizes to select "Buy tickets" to purchase a ticket for the raffle.
http://garden.org/ideas/view/d...