@Amanda66 the late summer colour they provide is fantastic and it's so cheap if you start from tubers although a little frustrating as they take ages to come to the stage of planting out! Give them a go they give you loads if colour!
Thanks @LadySmiff for the tip! My problem was that I bought a bag of cheap assorted tubers so I had no idea what I was planting or how big they were. It's been an exciting year to say the least! I think I have about 5 left to flower. I do love the dahlias though! 😃