[Trillium]

Remembered one more but can't remember who told me about this one is coriander - leave it to grow wild and the bees love it.

[sunshineband]

Don't forget the caterpillar food too though Peapod -- nettles and thistles, and nasturtiums too 

[rock_chick]

Careful with nasturtiums though, they seed everywhere. I used to love them until we moved to our new home, where the whole garden was overrun with them. They are great for wildlife though, and taste delicious in salads, so are an all rounder!