I agree with the nasturtium recommendation.
I love nasturtiums but stopped planting them because they were inescapably
black-aphid magnets.
If I wanted a bazillion aphids -- to feed baby geckos for instance -- I
would plant nasturtiums.

-paghat the ratgirl

--
"Of what are you afraid, my child?" inquired the kindly teacher.
"Oh, sir! The flowers, they are wild," replied the timid creature.
-from Peter Newell's "Wild Flowers"
See the Garden of Paghat the Ratgirl: http://www.paghat.com/