Q.fertilization
Can you mix an English walnut with a Black walnut ? I have had one of each die.

BushDoctor
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on September 19, 2017
Technically they can cross. Label branches that you purposely cross pollinate, and plant seeds outdoors in pots. Label everything. Some of them can end up being a cross between the two.
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