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Chinquapin Chestnut. The chinquapin (Castanea pumila), also spelled chinkapin, is a dwarf chestnut that has yellow flowers and grows to a height of 14 feet by the time it is 20 years old. It grows well in coarse-and medium-textured soils in zones 5 to 9. The nuts are small.It needs at least 40 days of rain and 150 frost-free days per year.apanese Chestnut. According to the U.S. Department of Agriculture, the Japanese chestnut (Castanea crenata) grows well only in Florida in the United States; it is native to Japan and grows prolifically there. This tree grows to a height of nearly 30 feet, and its leaves are about 7 inches long.
The sweet chestnut is the delicious, edible chestnut that most people are familiar with around the holidays. An edible chestnut is easiest to spot if it is still in its husk, which is spiny and needle-sharp.The toxic, inedible chestnut, also called the horse chestnut, has a husk that is much smoother, with only a few warts. Horse chestnuts are the ones commonly found in forests and backyards.hestnuts can be a nutritious and delicious fall and winter treat. They can be boiled, steamed and, of course, roasted over an open fire. But some chestnuts are toxic and definitely not for eating.