Pumpkin Center, Kern County, California. This article is about the unincorporated community in Kern County. For the unincorporated community in Lassen County, see Pumpkin Center, Lassen County, California.
Harvesting Chestnut Trees. After the chestnuts fall from the tree, watch for the spiny burs to split. Donât harvest chestnuts if the burs are still green and closed because the nuts inside will be unripe. Harvest the nuts every couple of days.
What do chestnuts yield and how are they harvested? Under good conditions, a chestnut orchard will have its first worthwhile yield 4 to 5 years after planting. Under less than ideal conditions it may take a few years longer. Maximum production will begin after 10 to 20 years depending on spacing and genetic material.