[header] How to dry walnuts [title] Harvest nuts when the outer husk is still green. [step] It should be soft enough for you to indent it with your fingers, but still green, rather than brown or mottled. This indicates that the nut has fully formed and is ready to be used. 
[substeps] Black walnuts usually become ripe in september or october. You can harvest them from the ground or shake them off the tree with a pole.