On Sun, 9 May 2010 13:10:40 -0700 (PDT), Chris Nelson
wrote:

The previous owners of my house planted a row of 6 rose bushes. One
of them is a "runt"; 1/2 the size of the others right now and never
seems to catch up. It seems healthy, just small. I know almost
nothing about roses. Is there something I can do to help it catch
up? Fertilize the small one? Cut the big ones back? I'm near
Albany, NY (whatever zone that may be).

There are many types of roses, all with different growing habits...
you can always move them. Are you north or south of Albany, I'm
south. I'm not a big fan of roses, they're too fussy. I have one
hybrid rose bush that the last owner left as a foundation planting, it
it died I'd not feel bad. There are a lot of wild roses here growing
in my hedgerows, I hate their thorns.