The butternut its the only american walnut that i would give it somme space on my land ,mostly because.its endangered and there is fear that in a few decades might go completely extinct.Its the only walnut thats comparable with Juglans Regia in cold hardiness and taste and actually tastes a little better than J Regia and its a little more cold hardy.The butternut also known as the white walnut ,its the shortest lived walnut ,living up to just 70 years but this is also an advantage for a grower because it will start fruiting fast( its also the fastest fruit bearing walnut,in 4-5 years.makes nuts).In USA they made hibrids with Juglans Ailantifolia,an asian walnut specie, wich are resistant to the butternut kanker ,but a hybrid its not like the original.I had a few white walnut seeds from wich 3 germinated but i lost the seedlings.Will try again soon but only if im sure the seeds are coming from the pure specie.Seeing manny americans planting black walnuts on their property made me to start this thread with the intention that it might convince a few to plant white walnuts instead of black walnuts.