The answer is no! The best temp for flowers is between 18 and 21 degree’s Celsius. There are only a few rare cases that you might consider refrigeration (on the warmest setting – with your veggies/fruit sealed up)
Delicate flowers (i.e. anemones/ranunculus/dahlias) have a short vase life. Keeping them in the fridge may help extend vase life and reduce browning
If some of your flowers are opening quicker than you’d like – the fridge will slow the opening process
Arrangements that aren’t able to be hydrated (i.e. boutonnieres/corsages/flower crowns) can be stored in the fridge, to help extend their lifespan