Weeds

Does anyone know what plant this is?
It came up in the garden and I (somewhat foolishly) left it there because the bees love it, but now it is appearing all over the place...arrrgh!
Weeding is not my strong point, as G will readily testify, and the little plants are not that easy to rip up by hand. Now I have some serious digging to do..
Other plants that are growing like weeds up in the veg garden are borage:

The bees also love this plant and it doesn't spread in quite such a rampant way as the unknown one above. It is also very easy to remove, although the leaves and stalks can be a bit on the prickly side.
And just look at the globe artichokes:

I gave last years plants a severe pruning and they have sprung up again really well. They do self-seed and in fact I did dig up and replant some of the little seedlings, but they didn't like the spot I chose for them (in the main orchard) and so I'm glad that these ones have done so well. They are quite large plants but aren't getting in the way of anything where they are at present.

On the bank garden this purple osteospermum, or South African daisy, is starting to bloom. I think this is a smaller variety of the red/pink flower I posted the other day, it certainly looks very similar.

However, these purple ones are on just little cuttings that I only planted a few weeks ago, so I was surprised to see flowers on them already. They obviously like the position they are in. I will try to get a better photo of the other one, it has several flower heads almost ready to bloom and they are very large - about 15cm across! These little purple ones though are only about 5cms! Still I like them with their interesting blue and orange centres.