According to the US patent on the scion (top) cultivar, it was developed in Germany in 1997. [x] I’m assuming it’s on a Turkish Hazel rootstock, because of the white bark
and single leader form.
This grafted tree was the last one at the local nursery, on clearance to
make way for new stock, so I thought I would give it a try to replace a willow I dug out.
I would certainly like to try doing grafts of my
own with materials from both scion and stock, but given that it is patented, there are unfortunately legal limits on how gardeners can innovate with, share, swap, and improve this cultivar.