Giving gifts is a tough task, not only because you have to find that one perfect gift, but also because you need to play by gift giving rules. The etiquette is different for every relation, but rarely are they mentioned. These may or may not be followed in informal relations, but in the professional world, one has to compulsorily follow them.
Before you start the quest for the perfect gift for your female boss, make sure you can give her one, because many organizations have rules which forbid employees from giving gifts to their boss, male or female.
If your boss is a coffee or tea lover, you can gift her a coffee or herbal tea basket. You can even add a special 'boss day' mug to it, if you are gifting it to her on that occasion. If she is a fitness freak, gifting her a sugar-free gourmet package will be just appropriate.
And, it is a known fact that all women like to get pampered, so she will surely be impressed by this thoughtfulness! Who knows, this idea may put you in her good books, for some time at least!
You can club two-three things and convert it into one, nice gift. This will make her happy, after all she is a professional women, and anything that can ease her work will be obviously welcomed by her.
However, there are a few things that need to be kept in mind while gifting flowers. Red roses are completely out of question. Instead you can give her a potted flower or a small potted plant, which can be placed on her desk without any hesitation.
Try to get to know her, what she is like when she is not a boss, what makes her smile and what blows her head off. This information, more than anything else, will help you choose the right gift for her.