Third-Party
Cashback deals for anyone buying into Valentine's Day flowers this year (although it's getting pretty last-minute to be organising this, especially for delivery…):
Easyflowers 13% (was 10%) - expires 12.2
Edible Blooms 8.4%
Interflora 10%
LVLY 11.2%
Petals 10.5% (was 7%) - expires 14.2
Pro-tip: Call your local florist and get a price on roses. The aggregation websites above often have 20-30% markup on top of local florist prices just because they can. Sometimes local florists can offer much better prices over the phone. Not always a guarantee, but I have had much success doing this over the years and its also good to support your local small businesses when you can.