Several Weeks ago, I planted some paperwhite bulbs in a shallow garden box in the courtyard. In spite of being outdoors and exposed to cooler wintertime temperatures, they are now happily producing these tiny white flowers. Click on the image to enlarge.
Here is a factoid I found at a commercial bulb vendors website:
The paperwhite narcissus, a relative of daffodils and jonquils, is easy to grow and produces small, fragrant flowers on 12 to 18-inch stalks. Most paperwhites have pure white blooms, but yellow varieties are also available.