Clematis variety ?

[LouisFerdinand]

Clematis Rosemoor

https://www.pinterest.com/pin/41869471506565409/

 

[LouisFerdinand]

Sparky Pink Clematis is an early flowering clematis.

https://www.pinterest.com/pin/171559067045998704/

 

[LouisFerdinand]

Nubia Boulevard Clematis is crimson.
https://flic.kr/p/Vv4Rys

 

[LouisFerdinand]

The President Clematis
https://flic.kr/p/2ezeYZp

 

[LouisFerdinand]

https://flic.kr/p/2jgPaz6

 

[LouisFerdinand]

Rain Dance Clematis

https://www.pinterest.com/pin/116671446586225042/

 

[LouisFerdinand]

Clematis Piilu is noted for being one of the heaviest blooming Clematis.

https://www.pinterest.com/pin/422281208073373/

 

[420benz]

For some reason i have absolutely no luck with clematis.I am i zone 8 so what variety is best for my zone?