The previous owner of my house put several bushes in the yard. Unfortunately the placement of some of these plants is a little bit odd, so I'm moving most of them. Next up are these Boxwood bushes. There are 3 of them. 2 are dark green but 1 is significantly lighter in color. Is this a different variety?

I think they are all the same. Maybe the one gets less water or fertilizer or is in a sunnier location?