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.
When to harvest chestnuts? Chestnuts donât ripen at the same time and chestnut harvest time can span as much as five weeks, although the nuts generally ripen in a 10- to 30-day span of time in late August and September. Allow the nuts to fall from the tree naturally.
How to Harvest Walnuts. Depending upon the variety and region they are grown in, walnut tree harvesting starts from early September to early November. At this point, the kernels are light in color and the membrane between the halves has turned brown. To determine if your nuts are ready for harvest, crack a few open.