Spalding’s final flower parade could be hit by a shortage of tulips as a result of the cold winter.
Organisers of the event, which has a theme Let’s Celebrate for its swansong, said they might have to import the flowers from France because the UK variety was still a “vista of leaves”.
Growers say they have experienced the worst conditions in living memory.
Kathleen Codd, parade manager, said: “There is very little likelihood of getting UK tulips in time for the parade.
“We are looking into the possibility of sourcing flower heads from abroad.”
She said if tulips heads could not be sourced in time other materials will be used.