Plants/Flowers to attract insects to vege garden?

Marigolds (pot, french or african), nasturiums... Anything really but pot marigold and nasturiums are my picks because they're edible flowers. Nasturiums are especially nice and spicy/peppery in flavour. Pot Marigold doesn't taste of much if you're just eating the petals but they're pretty on cakes or apparently the petals can be used to colour food like saffron. I tried it on some rice but you must need a large amount of petals, I think  :?

Bee Balm/ Monarda / Bergamont is also an obvious bee attractor. Leaves can be dried and used like earl grey tea (but the flavour in real earl grey comes from the citrus tree Bergamont not this plant).

Mind you, the dreaded butterflies like Buddleia too, so we don't want to encourage them NEARER the veg do we?? lol

... even a tiny one ... mine is like disneyland for bugs!! ...  

Borage and thyme are good for bees, fennel is alive with hoverflies, feverfew is good too. Lavender brings them in too

I also have a small patch for wild flowers ... well it keeps the blooming weeds at bay.   We have eschscholzia, lots of red poppies, clarkia, scabious, cornflowers ... it's alive with colour and bees ... and only about 6 foot square.

Big fan of nasturiums myself. A great value plant in that it flowers all summer until the first frost. The leaves,flowers and pods are all edible. The leaves in particular are great chopped up in salads to give them abit of a kick - similiar to rocket but moreso. Ive also picked some of the pods as they are supposed to be a subsititute for capers. Produces loads of seed so can be used year in and out for free.
The bees love them and so do blackfly which helps keeps them of your other crops. And at the end of the season easy to pull up and produces plenty of soft composting material.All in all great value all round.
I also grow sunflowers on the plot both for interest and to attract bees. I have a small patch of comfy and the bottom of the plot. Cannt say ive found it very attractive but , along with nettles, makes a great feed.