IMG_4138 (kopia).jpgHere's a closer of the nebari (in general they don't have a massive nebari):
I'm slightly concerned Starfox. From the pic you posted it appears you may have run out of Coopers!?!??
Also, consider low P, lowish N and try to make sure they have mycorrhizae by including some material from under a healthy birch. In other words they prefer poor soils but like to be wet.
I have also read this and yet I forgot about it and reduced the trunks in winter... Here's hoping it will power on