The power of a batch of freshly cut stems to totally revive a room–it's undeniable. In the spring and summer, I love a tulip or carnation (they're so pretty in bunches, give them some love, people!). But in the fall and winter, eucalyptus has my heart. Usually relegated to filler status, this leafy green can stand on its own in your cool-weather displays. Just look to these four beautiful eucalyptus arrangements as proof.