I live in Michigan, and did some online searching; the only place I could
find that had cheap starts (rooted twigs in starter pots, really) didn't
respond to my emails- everyone else is more expensive that I can afford, or
can't confirm their variety. I live in cold Michigan, so I need to make
sure the plants will survive here.

Here's the thing- if I can't find a cheap source (I'll need about 160
plants to grow my wife's hedgerow) then at least I have more time than
money, and maybe I can just grow my own. If I find a boxwood now at the
garden store, and trim every branch and use rooting hormone, and just try
to keep them alive inside over the winter...how long do they take to root,
and what percent of clippings root successfully? Any tips? I don't mind
starting with small plants and taking a few years to make the hedges, as
opposed to buying 1+ gallon pots at several dollar each.

Thanks,
Keith in Michigan