Gift giving for boyfriends mum for mothers day

Hi all,
My boyfriend is from Poland, and we've already been in a relationship for over three years.
With Mother's Day coming up, I'm unsure if I should order his mum a gift. We live in another country, and I don't see her that often. She doesn't speak English, so my boyfriend is the translator when we visit them. She's really lovely and always asks my boyfriend about me. The thing is, I'm not sure if it's appropriate, and I don't want to embarrass myself. She's in retirement and lives in a small village, so his family is always busy with their farm. Any advise?

Send her flowers with chocolates.

@Cargo pants
I don't know if she should give her anything at all. After all, it's Mother's Day. She should wait with the gift, e.g. until her Birthday.

If anything make a joined gift.