You all have such vast knowledge and I'm looking at some new plants and was wondering about your opinions if you grew any of these and they say zone 4 but I'm a 3 - do you think I should try them?

First is about Echinacea purpureas

Green Envy z4-9

Sundown Coneflower, z4-9

Twilight Coneflower, z 4-9

Coconut Lime z4-9

Pink Double Delight, z 4-9

Then Baptisia

They look really nice and the catalog I'm looking at has 4 colors...

Red Carpet Border Daylily - any comments?

Last and probably not the least Peony

Sorbet, z 3-8. I have one that bloomed last for the first time but would love more... Is this a nice one?