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.
How to harvest: After a season of caring for your plant, it's time for the benefits of your labor! 1  When the leaves have been killed by frost (or very late fall in warmer zones) loosen the soil around the horseradish with a pitchfork then lift out the root.  Shake off any remaining dirt. Wash and dry the root.