Day 23: A Yellow Flower!

It's the only yellow flower in the garden! I assume I planted it, but I don't know what it is, so I am guessing a little on that point. Can anyone identify it for me please?

Band starts back today so it'll be a lively morning settling all the children back into the routine. I'm looking forward to seeing everyone and catching up on their news. This afternoon is gardening duties if the rain holds off, or getting some more things ready for sale if it's too wet to stay outside.