My boyfriend and I just bought a house that we are closing on next
week. The previous owner planted at least one (there may be more
around back, I'll have more information when we move in) rose bush. It
is basically a 2 - 2.5 foot stick poking out of the ground at the
moment, although leaves are starting to come out at the very top. I
have no experience what-so-ever with keeping roses alive and happy but
am excited to try my hand at it. I have a couple questions though.

1) What do I need? I know that roses like to be well fertilized, what
kind and how often should I do that? Are there any other supplies that
help with growing roses?
2) Does it matter what kind of rose it is? I don't know what variety
it is, do different varieties need different kinds of care?
3) I read that generally you have a few different main stalks after
you prune (which she did in the fall of last year, it would seem). Is
it unusual for there to be only one stalk? Is it going to be a problem
and if so, is there any way to fix it?

Thanks a lot for any help, it's greatly needed!