> In some areas of Nova Scotia in late July and early August,  knapweed
> produces an  abundant crop of light colored honey with a green tinge and a
> pronounced bitter aftertaste.

The green tinge sounds more like purple loosestrife.  Some have described
p.l. as a bitter honey (personally I don't agree, but to each their own).
However the green tinge is classic p.l.  Knapweed produces later in the
season in upstate NY, around the beginning of September (I don't think the
season in Nova Scotia is a full month behind upstate NY) and knapweed honey
is more medium-dark with no greenish hue.

Aaron Morris - I think, therefore I bee!