Open to all Enterprise publicans, the first round of the competition will be run at regional level, with entrants sending photographs of colourful displays.
Each regional winner will receive £500 to spend on their pub, and progress to a divisional round, which will see pubs visited by Enterprise divisional directors.
The publicans judged to have delivered the best display in each division will receive £1,000 to spend on their pub.
Enterprise sales and marketing director James Armitage said: “This is publicans’ chance to make the outside of their pubs look fantastic, and win up to £1,500. There were some amazing entries in 2014, and standards this year are bound to be high.
“We want entrants to make the outside of their pubs look exceptional. Judges will be looking for good examples of abundance, creativity, the Wow! factor, and kerb appeal – how does it look to a customer passing for the first time and does it compel them to come inside?”
Publican Kelly Savickas, who runs Bristol’s White Bear with Jules Munns, was among last year’s divisional winners.
She added: “We’re always up for doing things that will promote the pub and help bring people through the door, and joining in Pubs in Bloom was another way to do that. Winning was a real bonus, and a lovely surprise.”