That has to be the vilest sickest suggestion I have ever heard. Im sorry but your wife creeps me out, using a cup? Oh god.Major difference of opinion here.

Anything the body expiunges be it excrement or menstraul blood is usually expelled for a reason!!! Therefore why on earth would anyone sane want to use it as fertiliser on something that goes back into the body.
Menstrual blood? Ive heard it all now.
LOL
rastagal Reviewed by rastagal on . Menstrual Blood as fertilizer? My wife has been using a diva cup instead of tampons or pads, and suggested using it as a fertilizer. Has anyone done this before? Results? And as far as application, should it be dilluted and applied during a regular watering? Is there a time when it's application would be of most benefit (veg/flower/on her once a month schedule)? Rating: 5