Best hearthboard for mullein handdrill?

[torjusg]

I have found a patch with mullein under a mountain at home. From what I understand, mullein is reasonably good for a handdrill. Any ideas of good hearthboards for this wood?

And the same question with bull thistle and yarrow?

Torjus Gaaren

 

[firemaker]

I like to use Basswood. Good luck and tell us how it goes for you.

Darrel