Will my Blueberry Bush ever Grow?

About 6 years ago, I bought a blueberry bush from Wal-Mart.
We planted it and, every year, it get's green and looks really nice -
but there's never any blueberries that grow off of
the bush...

Will it ever grow, or is it 'infertile' and just get's full
and green?
Update: there are two bushes together - so they are cross pollinating.
9 answers 9