Valentine's Day is usually a boon for florists. But in the United Kingdom, a cloud hangs over the industry.
Rosa Ashby, who runs Rosa Flowers in the English market town of Witney, is anxious. Every flower in her shop, including lilies, chrysanthemums and lisianthus, is either grown in or distributed through the Netherlands. That has worked just fine since Ashby started her business 22 years ago, because the U.K. has been inside the European Union's single market, and flowers — and countless other products — have flowed seamlessly across the border.