There is a strong tradition for Slavic nations:
even number of flowers is possible only for the passed away member of
family, friend, colleague, etc.
The color can be different, but the most convenient are white and red.
Suggestion: Please, make sure you send a The Mourning bouquet before the Funeral. It is a bad sign in Slavic culture if flowers are delivering to the home after the Funeral already took place.
This bouquet of half-dozen or dozen white roses with a mourning black ribbon will pass your true feelings of a condolence and empathy for loss even if you are far away at the moment...
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