Kate Cunningham, who had a hen do the night before, says her son was initially embarrassed by the stunt.
A mum-of-two has 'tied the knot' with a tree and now intends to change her surname to reflect the species she 'married'.
Kate Cunningham's family and friends looked on as the bizarre wedding ceremony was held in a Merseyside park.
The 34-year-old bride decided to 'marry' the elder tree in Litherland's Rimrose Valley Park as a stunt to raise awareness about a campaign opposing the construction of a new bypass.
The activist, from Melling, told the Liverpool Echo that she had a hen do the night before and now plans to change her name to Kate Rose Elder by deed poll.