It has taken and already fruiting. Grafted to White Mulberry it failed. Grafted to blue Mulberry, it took! The Australian Green Mulberry is also compatible with the Everbearing Mulberry. Here’s the pic of my multigrafted Mulberry.
I’m sure they’ll be great in our 9b zone. I don’t know how hardy they’ll be. I am speculating not as hardy because it is from Australia where they have fewer agricultural areas of lower USDA zones.