How do you know they don't?  My cat regularly comes out in the garden
to "help" me,  and I always see him nibbling at grass.  Are  your cats
indoors?  If so, you can get plants at cat stores.  Ripoff prices, but
betterthan nothing for indoor cats.

Persephone

--

"Other than telling us how to live, think,
marry, pray, vote, invest, educate our children,
and now, die,I think the Republicans have
done a fine job of getting government out
of our personal lives."

Your cat will eat grass - Kitty Grass (sold commercially) will suffice if
you have no long grass.  Or you could let a corner of your lawn (if you have
one) grow longer just for kitty.

As to making kitty happy, love and attention always has that effect.
Praise, groom and play with your cat - my cats thrive on it.  Incidentally,
they are not affectd by catnip either.

Spider