Oh your poor DH I bet he loves a stripy lawn arty.
I would not get a wild flower mix. I would choose according to size of garden.
so what wild flowers have i got in my garden?
Borage yes - if you can stand it's generally scruffy appearance. reseeds.
Field poppies - just scatter on broken ground
Welsh poppies - will re-seed for ever.
sweet violet - coming out now, smell lovely, clumpy
dog violet - later, not scented, rather invasive but cute
toadflaxes - tall purple kind (scruffy) or small yellow
campion family - all kinds , pink, white, big , small
there is an annoying thing called i think anchusa - a giant forgetmenot. cant get rid. dog daisies also reseed for ever and try to take over.
but small forgetmenots good and reseed.
there is a kind of pink deadnettle out the front. it planted itself.
nigella and cornflower also good annuals, with nigella being the more reliable.
BUT don't get seduced into thinking you can have a wild flower meadow. They have to be left unmown until the plants have seeded. They really like very impoverished soil.
bees like lavender. tiny tubes. Hidcote is a great dwarf one.