Hello my dear, I can understand your problem and I know that you want to do something special for your mum on her special day. It is a very normal problem with most of the people these days that they forgot the birthday of their beloved. Due to work stress and busy life schedule, it is not easy to remember any birthday or any other special day in your life. It was your mom’s birthday and she was expecting I wish from her daughter. Your situation is different and not easy to understand because it will depend on many factors. It will depend on behaviour and relation of both of you. If you are celebrating your mom’s birthday every year, she must be expecting something special from you on her special day. If you take it lightly every year then she didn’t have any expectations. It is a good thing that you want to do something special on this day. If you want to send flowers online, it is a good thing for people who are living at a distance from relatives and family. She will really like it but she will still I think that you forgot her birthday. You should talk to her personally over the phone and should tell her about you’re a mistake on her birthday. Then you can send Roses and any special gift for her on this special day. It will be really helpful to make your relationship stronger with your mother. She will easily forgive you because she will understand that it is a normal thing for anyone to forgive birthday not any other special day. Best of luck dear and I hope it will work for you.