Code Extension At Serenata Plants Written by Optimus Performance Marketing on February 21, 2012. Posted in Awin, Flowers, Offers/Promotions, Promotion, Voucher Codes We are pleased to announce that the current generic voucher code for Serenata Plants has been extended. Please find the details below:- Code - gf55hgj6 Promotion - 7% off Expires - 29-02-2012