Chestnut Tree Care. It’s straight and lengthy. Identifying Your Chestnut Tree – Step 2 of 2. This chestnut tree grows one of the best tasting varieties of chestnuts. Chestnut is one of the world’s most popular and unique nut-bearing trees. These are generally grown from seedlings and grow best in zones 3 through 9. You need a pH of between 4.5 and 6.5. 7. Chestnut trees need abundant sunlight (six or more hours of direct summer sun) and fertile, well-drained and slightly acidic soil. Chestnut bushes may be moderate-growing or fast-growing. Chestnut trees in autumn . Chestnut blight was first noticed on American chestnut trees in what was then the New York Zoological Park, now known as the Bronx Zoo, in the borough of The Bronx, New York City, in 1904, by chief forester Hermann Merkel. This tree produces a harvest of nuts in the late fall season. American Chestnut tree. Mature chestnuts can range in top, from shrubby to large bushes that may be as tall as 60 meters. They can grow in partially clay soil if the land is on a slope, but they will grow best in deep, sandy soils. Chestnut trees have a fairly low level of tolerance for clay and other poorly drained soils. 2 Picture Gallery: 4 Common Types of Chestnut Trees . Merkel estimated that by 1906 blight had infected 98 percent of the chestnut trees … Be sure your soil is acidic before growing chestnut trees. Horse chestnut tree: Plant Type: Deciduous tree: Mature Size: 50-75 feet high, 40-70 feet wide: Sun Exposure: Full sun, part sun: Soil Type: Moist, well-drained light, medium, and heavy soils: Soil pH: 4.5-6.5: Bloom Time: May: Flower Color: White: Hardiness Zones: 4-7: Native Area: Greece, Albania, Bulgaria: How to Grow the Horse Chestnut Tree . Once you have decided that you have a Chestnut, the second step in deciding if your tree is American chestnut is to distinguish whether it is pure American, or if it has some non-American chestnut parentage. Comparisons of Ectomycorrhizal Colonization of Transgenic American Chestnut with Those of the Wild Type, a Conventionally Bred Hybrid, and Related Fagaceae Species, 2014. The Chinese chestnut tree (castanea mollissima). Fresh chestnuts contain vitamin C and are much lower in fat than other nuts and contain twice as much starch as a potato, earning the chestnut tree the nickname “bread tree” in some regions of the world. If you aren’t sure, get the pH tested. All chestnut tree types require well-drained soil to thrive. These bushes have a reasonably broad trunk that usually grows as tall because the mightiest oak bushes.