To change the subject somewhat:
Would really like to attract hummingbirds. Is this possible in Somerville? We bought a nectar feeder along with some red-dyed juice and two hanging pots of bright red blooms (geraniums and impatiens). I'm thinking of getting a butterfly bush if I can find a place to fit it, along with lots of petunias. Am growing sweet peas, morning glories and nasturtiums, as well. In any event, this all is going to look great by July or August. Just don't know if I should get my hopes up regarding the visitors I'm trying trying to entice.