If it is for your mom, sister অথবা grandma maybe. The ফুলেরডালি are a nice touch, but I will tell আপনি from experience that they want to hear the words too-"I was wrong for _______. I did not mean to hurt you. I care about you. I apologise." So however আপনি say it, in a card অথবা with something, I hope আপনি will make sure to tell them, too.