Mother's Day flowers may not arrive as florists run out of delivery slots Sons and daughters who have left it late could be out of luck because of the coronavirus boom in demand 12 March 2021 • 5:01pm Florists could struggle to fulfil thousands of late orders Credit: Erik Anderson/Shutterstock Mother’s around the country could be sitting at home this Sunday waiting for flowers which will never arrive as offspring who have left it late may have found they are out of luck. For a huge boom in orders at florists has left them overwhelmed with some finding themselves short of delivery slots. One even tweeted on Friday to say it had run out of fresh flowers.