<P> Foster's Home for Imaginary Friends is an American animated television series created by Craig McCracken for Cartoon Network Studios . The series centers on an eight - year - old boy, Mac, who is pressured by his mother to abandon his imaginary friend Bloo, who moves into an orphanage for imaginary friends, and is kept from adoption so that Mac can visit him daily . The episodes center on the day - to - day adventures and predicaments in which Mac, Bloo and other characters get involved . </P> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 12 </Td> <Td_colspan="1"> August 13, 2004 </Td> <Td> October 22, 2004 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 15 </Td> <Td_colspan="1"> January 11, 2005 </Td> <Td> July 15, 2005 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 14 </Td> <Td_colspan="1"> July 22, 2005 </Td> <Td> March 24, 2006 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 13 </Td> <Td_colspan="1"> April 28, 2006 </Td> <Td> November 23, 2006 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> Shorts </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> July 7, 2006 </Td> <Td> August 7, 2007 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 5 </Td> <Td_colspan="2"> 13 </Td> <Td_colspan="1"> May 4, 2007 </Td> <Td> March 6, 2008 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 6 </Td> <Td_colspan="2"> 11 </Td> <Td_colspan="1"> March 13, 2008 </Td> <Td> May 3, 2009 </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr>

How many seasons did fosters home for imaginary friends have