custom

It wouldn't really matter which kind you chose.
Perhaps not red roses, though.

Whichever looked nicest in the shop!

Westerners generally don't see deep meanings in the choice of flowers.

White flowers compliment almost any interior decoration.

Re: custom

You might want to ask in a conversation with whom you're visiting first.

Some people are allergic to flowers or they may have pets that might go after them, which could make them sick.