The great mystery surrounding the toys and flowers appearing on the century’s old grave of an Adelaide toddler has been solved.

Hope Valley resident, Julie Rhodes, said she and friend Vicki Lyons are responsible and began the clean-up and gift-bestowing after Herbert Henry Dicker, who died in 1885 aged just two, visited them both in a dream and led them to his grave.

Ms Rhodes and Ms Lyons hope their actions will inspire others to clean up and maintain cemeteries.