Secretary Vilsack says here (interview while helping plant) the Obama garden may have spurred seed sales and others have speculated that the recession will cause people to save money gardening.
This may be so, but I can't see it at my community garden. The rules call for visible activity by the first week of May and usually there's only a couple plots idle by then. Right now there's a number idle. It may be the spring has been cool. Or maybe just a statistical anomaly. Or maybe Obama has all my fellow gardeners working overtime so they're too tired to dig.