Last fall, we gathered several pails of black walnuts at a friend's farm. S he has several large trees, which produce more nuts than she can use. I pla nted 32 in the back row of the garden and eight in seed trays but nothing h as sprouted. I would have expected at least a few of the 40 planted to prod uce trees, as that's what nuts are for, at least from the point of view of the trees.
Paul