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.
Plant at least two different hazelnut tree varieties to produce nuts. Plant your hazelnut trees with less than 50 feet between the cross-pollinating tree varieties, or plant the trees as close as 5 feet apart.Ensure that the soil is deep and well-draining, as the trees' roots need a penetration depth of 6 to 10 feet.tep 5. Harvest the hazelnuts in late summer and early autumn, when the nuts turn from green to a brownish-hazel color. You can pick the hazelnuts from the trees, preferably before they fall.