The SFPUC Gardening Calendar is free to all San Francisco residents. One calendar per resident, please. The mailing out of the 2010 calendars will begin starting around mid-to-late December 2009.
The Gardening Calendar provides tips on how to maintain a healthy garden by using less-toxic and non-toxic products and integrated pest management techniques.
It also highlights many fun and informative gardening events taking place throughout the year.
sfwater.org : calendar