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.
Place the hulled horse chestnuts in a bucket of water. Soak them for 24 hours to soften the inner hull. Drain off the water the next day and lay the seeds on a flat surface to drain. Place the horse chestnuts in the bucket. Pour 5-percent bleach into the bucket until the seeds are barely covered.