Root cuttings taken in the winter are best

Phlox paniculata start readily from cuttings. Al

How do you take a root cutting of phlox?

I too tried some Phlox, just late this fall. They died. I didn't know if it would work, but now I know. I'm guessing it was because the stalk was basically done for the year and ready to go dormant. Other things like penstemons will root just about any time of the year. I think I'll try some Phlox cuttings in the spring.
I ordered some Phlox in different colors and got them bareroot just a couple weeks ago. I'm scared they won't make it through a winter, but will just have to see what comes up in the spring.