Additional Gardening Related Data for Zipcode 38572 – Crossville, Tennessee 1990 Hardiness Zone: Zone 6b: -5F to 0F Average First Frost: October 11 – 20 Average Last Frost: April 11 – 20 Koppen-Geiger Climate Zone: Cfa – Humid Subtropical Climate Ecoregion: 68a – Cumberland Plateau Click to see full answer. Keeping this in consideration, what planting zone is TN?Tennessee is comprised of seven USDA hardiness zones: 5a, 5b, 6a, 6b, 7a, 7b, and 8a. Northern areas in zone 5b experience the state’s lowest temperatures dipping to minus 15 degrees Fahrenheit.One may also ask, what are the zones for planting? The USDA Hardiness Zone Map divides North America into 11 separate planting zones; each growing zone is 10°F warmer (or colder) in an average winter than the adjacent zone. what gardening zone is Knoxville TN? Knoxville, Tennessee is in USDA Hardiness Zones 7a.What grows well in Tennessee? Fall Planting of Cool-Season Vegetables Examples of cool-season vegetables that work for planting in this time frame in Tennessee are broccoli, cabbage, Chinese cabbage, cauliflower, collards, pickling cucumbers, slicing cucumbers, kale, kohlrabi, lettuce, mustard greens, Irish potatoes, icicle radishes and spinach.
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