My boyfriends mom doesn’t like me

Avery

So my boyfriend and I have been together for just under a year and it’s been going really great expect for the fact that his mom isn’t a big fan of me. I know it shouldn’t matter to me as much as it does but I’m in love with her son and I want her to like me. I always am very polite at family get togethers, I smile at her always, I encourage the relationship he has with his mom and I got her a new succulent to add to her plant collection for her birthday. Does anyone know anyway to strengthen our relationship?