There was an article in an old Bee Culture that reported old discussions
about doing just that.  The idea became unglued when it was discovered
that Borage Honey tastes *bad*.  You should be able to get a reprint of
the article.
jmortier wrote:
 
> I am looking for a bit of advice on planting a suitable flowering crop
> on my
> 12 acres in southern British Columbia. Borage seems to be a good
> contender
> as it flowers for a long period and is self propagating. Winters are
> wet and
> warm on the west coast ( Seattle like climate) and the bees are still
> visiting the handfull of experimental borage plants that I planted in
> the
> spring. Is this a good "bee" plant (they seem to like it) and where am
> I
> able to get enough seeds for my needs? What does borage honey taste
> like?
> Any other plants worthy of note? Seed availability?
>  Has anyone done a study showing how many acres are needed to support
> a hive?