Green is good, but so is yellow — especially if it comes in the form of lovely daffodils popping up all around West Roxbury.

Last fall Mayor Menino and the City of Boston gave away 40,000 bulbs in the "Boston Blooms with Daffodils" program to individuals and organizations willing to plant them in public spaces around the city. West Roxbury Saves Energy secured several hundred; we passed along some to local schools for their grounds and planted others around town. Responsible for daffs in one of the photos below through the same Boston Blooms program was the Evening Garden Club of West Roxbury.

Today's challenge is to identify where these yellow beauties are blooming — the first five people to correctly name all four locations will receive a free WRSE T-shirt! Just email your guesses to wrse@westroxburysavesenergy. We will post the winners' names on our website, WestRoxburySavesEnergy.org, along with partner photos that divulge the locations clearly. There is at least one clue to each location in each photo, so look closely!

Have fun, and enjoy the spring daffs as they beautify West Roxbury in this month of Earth Day. Also remember that the annual Boston Shines cleanup days are April 27 and 28 this year, and we need the usual good turnout for West Roxbury, to clean up Centre Street and plant flowers again this year.

Check the WRSE Web site for more details or call Chris Tracy of Neighborhood Services at  617-635-3485 to register.

Please also remember to join us on Earth Day, April 22, at West on Centre for a Solar Energy Workshop, where you can find out if your house is a good candidate for solar and also learn about solar energy rebates through the City's Renew Boston program or sign up for a free home-energy assessment.