newbie needs ideas for half barrels
I rent an apartment in a brownstone building and would like to plant some flowers in two half barrels that sit out in front of the building. The half barrels get about 4 hours of full sun a day, and each already contains a rounded boxwood (about a foot high and wide) in the center. I would like to plant something around the boxwoods to add a little color - something that would look nice throughout the summer in the city (Brooklyn, NY). I am not much of a gardener, so I don't know what would look right and am looking for ideas. Any help would be greatly appreciated!