Love / Have no idea what kind of flowers to get to my Polish girlfriend's mother [2]

Greetings,

My girlfriend's mom owns a business, and I am going tomorrow to take lunch to my girlfriend and her mother.I plan on taking flowers to give to my girlfriends mother, and I'm assuming that she'll be setting them out front in the office.I know that Polish people have traditions that they take pretty seriously, like getting lilies is a really really bad idea.So is it possible that someone can tell me what kind of flowers I should get so that I'm not relaying some kind of weird and/or bad message?

Thank you in advance for your responses!