Can anyone identify this?

Think you on right lines with scabious,Gillian try google scabious devils bit what you think?

It's a Sheep's-bit (the Latin name is jasione).

Mmm well thought may be sheeps bit but flower head less compact on this and stamens very much longer -

Checking out images online I think Devil's Bit Scabious could be it. I actually emailed McKenzie seeds as well to ask them what it might be, since it was their seed packet!
We'll wait and see what they come up with!

Check the leaves too - the scabious and Sheep-bit have different ones so that may help the identification

Most of the images I found didn't show the leaves unfortunately, that's what I was looking for too.
In the second picture above you can see they look very fern-like.

The leaves of Devil's-bit scabious are usually entire but there is also Small Scabious (scabiosa columbaria) with pinnate leaves which is widespread in Britain

I checked out pictures of scabiosa columbaria and the ones I found showed it more like the regular scabious with the daisy type petals around the centre. It's entirely possille of course that it is a variation of that.

Just heard back from McKenzie seeds that they will be sending me a list of their seed packet contents!

I can now say with confidence that this is Phacelia tansy (Phacelia tanacetifolia) - thank you McKenzie seeds!
I have the entire list now of my packet contents.

And .......?
Do tell what we may expect to see :-)

That's just what I did, Marguerite, for the ones I was not familiar with, and so now I know what I might expect.
I'm having fun with the mixed seeds, might try a different mix next year and see what I get! I believe they do a butterfly mix which could be fun.

Delayed in visiting, but my first guess would have been phacelia as well. If the leaves are somewhat coarse and hairy and bees enjoy it, then it is a good possibility. Can be invasive esp. in dry wretched soils. It is a survivor.

There are some American S.W. natives that are quite beautiful.