The push, through the Haygarth Group, will run on 650,000 1-litre bottles of Copella. It offers consumers £12 off the title's £36 annual subscription.
Consumers can also win one of 20 holidays in a related on-pack competition.
The holidays are taken from Country Living's Country Escapes B&B Guide, which is sponsored by Copella and is covermounted on the May issue.