Just be aware that dahlias from seed most likely won't look like your yellow unknown one. Dahlias don't come back true to the parent from seed- too many gene combinations- & if you grow any open centered ones they will dominate.

My yellow dahlia is an open centered dahlia. The parent plant probably being CG Charm or Beaucoup Amis from the looks of it. It really doesn't matter to me whether or not they come true to the parent plant. I'm not really into the flower/plant name game, just into growing beautiful flowers.

FWIW, what you have looked at and enjoyed was the result of someone caring about the flower/plant name game. You may not care, but if all of us didn't, you wouldn't have what you have...and, you may not have it next year, because people aren't caring about the flower/plant name game.

I don't mean to sound negative, but we aren't simply harvesting some naturally growing beauty here. Knowing a little bit about genetics helps a whole lot...or else we'll be here 3 years from now trying to explain to someone you've given tubers to as to why they don't look anything like your description now.

I here portulaca is nice?

Cheers,
Russ

Well, Russ, I'm glad there are people like you in the world. No need to get on your high horse. I do know a little about genetics and open pollination and I find crosses to produce some very interesting combinations. I was just stating that I grow my garden for enjoyment and not so that I can say I have an original so and so. It so happens that I have posted on my exchange page that all plants are open pollinated and that sometimes you get what mother nature creates. People who understand that and enjoy crosses like me are the only type of people I trade with. Perhaps you should cross some of your dahlias. You might actually enjoy what you get.