Dark Butterfly Decorative Dahlia

These seem to be one of the earliest to bloom in my garden.

I received the tubers in August in zone 8. I planted them in a container and they began growing well.

I planted these plants late in the summer this year , they
have lots of blooms and still get flowers until now . love them

The order said I would get three tubers. I did get three however only two would produce new growth. The two are now growing but the third is basically dead

seems to be progressing well no blooms as of yet