Question
i would like to know how to start a seedling from a butternut,i live in north central pa.the nuts are still green
thanks steve

Answer
Hi Steve,
Thanx for your question.  The link below is to the Ontario Extension news and has an excellent article not only on the butternut tree but on how to propagate it from seed.

http://www.lrconline.com/Extension_Notes_English/pdf/bttrnt.pdf

I hope this helps.
Tom