Call the radio station.

Thanks Ted

What I could have done is listened to the program again but did not and now I forget what radio program it was

I find I listen to a number of radio garden programs on the internet and then do not always remember which one I was listening to

There are thousands of named varieties, and without the first part of the name, is very difficult to ascertain. There are plenty 'over the puddle' in the UK and Australia, too, that may never make their way to our shores.

Best bet is to browse dahlia nursery websites, and find your own favorites that you can actually get in the US... Tastes vary tremendously, and there are many shapes/sizes/colors to entice.

I just posted this on another thread, but it's well worth reposting so you can browse the companies that specialize in dahlias but don't rank in the top twenty of search engines.

Here is a link that might be useful: Big list