The Bumblebee Conservation Trust is inviting people to send in records of what Bumblebees are seen in there gardens.
Dave Goulson, of the trust, said people would get help identifying the different species.
He said: "People with digital cameras or a camera on their mobile phones can send us pictures of the bumblebees in their garden and we will send them back an identification.
"If people send us the date and a postcode of where the bumblebee was seen then we will be able put together a national map."
The trust will announce a date for the garden watch later this year.
If anyone is after an id guide there is an article in the latest bird table (the journal of the BTO garden birdwatch scheme) or you could purchase the field guide to the Bumblebees of Great Britain and Ireland.
This maybe particularly prescient as the Daily Telegraph is reporting that honeybees colonies are being devastated this winter.