Please don't advocate taking wild flowers from verges or anywhere else. Even if it is "only a daisy". Uprooting wild plants is illegal under the Wildlife and Countryside Act 1981. Of course, you may be able to find someone who wouldn't mind you removing daisies from their lawn!
I hear what you're saying LG. And anything else I would be calling the old bill my self. But Daisies? Our verges at the front of the house are covered in them, and they are wonderful, but half the neighbours use lawn weedkiller on them and nobody bats an eye lid. But to be honest they are probably the most common lawn 'weed' next to dandelions so someone rescuing some for propagation to benefit wildlife is, I think, perfectly acceptable. And FAR, FAR, FAR better to have locally sourced plants than introducing seed diluting the local gene pool.
On a worse note. Outside the local cemetery the daisies are being polluted by the godawful monsters the council thinks are acceptable bedding plants.
So save as many as you can I say. By the way, I shall be rescuing hundreds of northern marsh orchids shortly from weedkiller because the owner things they make the place look messy.
I think you should follow the spirit of the law not the letter.