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.
Growing Horse Chestnut Seeds or Conkers. The horse chestnut can also be grown from seeds or conkers. The spiny seedpods drop from the tree in fall when ripened and crack open to reveal the horse chestnut seeds inside. Horse chestnut seeds should be planted as soon as possible. Do not allow them to dry out.