Mothers Day flowers are a super way to tell your amazing Mum how special she is to you. Some of us are overseas for Mothers Day and can't make it home. What better way to show your wonderful Mum how much you love her than to have flowers delivered to her on Mothers Day weekend or on Mothers Day - Sunday March 11th, 2018. Mother's Day is celebrated in both the UK & Ireland on this day. The most popular types of flowers sent on Mothers Day are generally spring flowers with bright and colourful selections.