The Natchez Blackberry (Rubus fruticosus 'Natchez') is a thornless blackberry cultivar known for its large, sweet, and flavorful berries. Here are some key features of the Natchez Blackberry:

1. Origin: The Natchez Blackberry was developed by the University of Arkansas as part of their breeding program. It was introduced to the market in 2007.

2. Plant Type: Natchez Blackberries are perennial shrubs that belong to the Rubus genus of the Rosaceae family. They are part of the erect or semi-erect blackberry category, meaning their canes grow upright or at a slight angle.

3. Fruit: The berries of the Natchez Blackberry are large, averaging around 8 to 9 grams each. They have a glossy, black-purple color when ripe and are known for their sweet, juicy flavor. The berries are typically harvested in early to mid-summer, depending on the climate.

4. Thornlessness: One of the key features of the Natchez Blackberry is its lack of thorns, which makes harvesting the berries much easier and more comfortable for growers.

5. Vigor: Natchez Blackberry plants are known for their vigorous growth, producing numerous canes that can reach heights of 4 to 5 feet. They require adequate support, such as trellising or staking, to keep the canes upright and prevent them from sprawling.

6. Hardiness: Natchez Blackberries are hardy in USDA zones 5-9, making them suitable for a wide range of climates. They perform best in areas with mild winters and moderate summers.

7. Sunlight and Soil: Like most blackberries, Natchez Blackberries prefer full sun and well-drained soil. They can tolerate a range of soil types but perform best in loamy, fertile soil with good drainage.

8. Pruning and Maintenance: Proper pruning is essential for maintaining healthy Natchez Blackberry plants and maximizing fruit production. Canes should be pruned back after fruiting to remove spent growth and encourage new growth for the following season. Regular irrigation and fertilization may also be necessary to support vigorous growth and fruit development.

Overall, the Natchez Blackberry is a popular choice among home gardeners and commercial growers alike for its large, sweet berries, thornless canes, and vigorous growth habit. With proper care and maintenance, it can be a productive and rewarding addition to any garden or orchard.