I just ordered some seeds for this plant. I hope to plant it on one side of my arbour. (John Davis Rose is on the other side). It would appear that it needs a lengthy cold period (stratification) so wintersowing will be perfect.

Great! Let us know how it turns out, and if you can take some pictures, all the better!

~ Evelyn

It does require some chilling-I tried a WS one year,but only got a few planta---could be seeds were not good.

Maybe I will wintersow some and stick some in the freezer for a bit as well

It is good to try different means of germination.
One year I did seed them outside in pots--later in the season but they did not grow very tall that year.