Introduction
North Carolina is a state located in the southeastern part of the United States. It has a diverse climate that ranges from the coastal plains to the high mountains. As a result, the state is divided into different zones for planting. These zones are determined by the average minimum winter temperature, which is an important factor for plant growth and survival. In this article, we will discuss the different planting zones in North Carolina and what plants are suitable for each zone.
Understanding Plant Hardiness Zones
Plant hardiness zones are a geographical area that has a similar climate and weather pattern. The United States Department of Agriculture (USDA) has created a map that divides the country into 13 zones based on the average minimum temperature. This map is widely used by gardeners and farmers to determine which plants are suitable for their area.
The Planting Zones in North Carolina
North Carolina is divided into three planting zones, which are 6b, 7a, and 7b. Zone 6b has a minimum temperature range of -5°F to 0°F, while zone 7a has a minimum temperature range of 0°F to 5°F. Zone 7b has a minimum temperature range of 5°F to 10°F. The mountainous regions of North Carolina have a different climate and are not included in these zones.
Zone 6b
Zone 6b covers the western part of North Carolina, including Asheville and Boone. This zone has a cold winter climate, with an average minimum temperature of -5°F to 0°F. Plants that are suitable for this zone include apple trees, blueberries, and peaches.
Apple Trees
Apple trees are a popular fruit tree in North Carolina. They require cold temperatures to set fruit, making them suitable for zone 6b. Varieties such as Rome, Granny Smith, and Winesap are good choices for this zone.
Blueberries
Blueberries are a fruit that thrives in acidic soil and cooler temperatures. They are an excellent choice for zone 6b, with varieties such as Bluecrop and Duke being the most popular.
Peaches
Peaches are a fruit that requires a certain amount of chill hours to produce fruit. Zone 6b provides enough cold weather for peach trees to produce a bountiful harvest. Varieties such as Belle of Georgia and Elberta are good choices for this zone.
Zone 7a
Zone 7a covers the central part of North Carolina, including Raleigh and Greensboro. This zone has a milder winter climate, with an average minimum temperature of 0°F to 5°F. Plants that are suitable for this zone include strawberries, figs, and sweet potatoes.
Strawberries
Strawberries are a popular fruit that thrives in cooler temperatures. They are an excellent choice for zone 7a, with varieties such as Chandler and Camarosa being the most popular.
Figs
Figs are a fruit that requires a long growing season and mild winter temperatures. Zone 7a provides the perfect climate for fig trees to thrive. Varieties such as Brown Turkey and Celeste are good choices for this zone.
Sweet Potatoes
Sweet potatoes are a root vegetable that is easy to grow in zone 7a. They require well-drained soil and warm temperatures to produce a good harvest. Varieties such as Beauregard and O’Henry are good choices for this zone.
Zone 7b
Zone 7b covers the eastern part of North Carolina, including Wilmington and Fayetteville. This zone has a mild winter climate, with an average minimum temperature of 5°F to 10°F. Plants that are suitable for this zone include citrus trees, avocadoes, and kiwi.
Citrus Trees
Citrus trees such as oranges, lemons, and grapefruit thrive in a warm, humid climate. Zone 7b provides enough warm weather for these trees to produce a bountiful harvest. Varieties such as Satsuma and Meyer Lemon are good choices for this zone.
Avocadoes
Avocadoes are a fruit that requires a warm climate to grow. They are an excellent choice for zone 7b, with varieties such as Bacon and Fuerte being the most popular.
Kiwi
Kiwi is a fruit that thrives in a mild climate. Zone 7b provides enough warmth for kiwi vines to produce a bountiful harvest. Varieties such as Hayward and Bruno are good choices for this zone.
Conclusion
North Carolina is a state with a diverse climate that is divided into different planting zones. These zones are determined by the average minimum winter temperature and play an important role in determining what plants are suitable for each zone. By understanding the different planting zones in North Carolina, gardeners and farmers can choose the right plants for their area and create a beautiful and bountiful garden.
FAQs
1. How do I find out what planting zone I am in?
You can find out what planting zone you are in by visiting the USDA Plant Hardiness Zone Map and entering your zip code.
2. Can I grow plants that are not recommended for my zone?
While it is possible to grow plants that are not recommended for your zone, they may not thrive and may require more maintenance than plants that are suitable for your zone.
3. Can I grow tropical plants in North Carolina?
It is possible to grow tropical plants in North Carolina, but they may require additional care and may not thrive in the cooler climate of some zones.
4. How do I protect my plants from frost?
You can protect your plants from frost by covering them with blankets or tarps, setting up a temporary greenhouse, or using frost cloth.
5. When is the best time to plant in North Carolina?
The best time to plant in North Carolina depends on the plant and the zone. Generally, it is best to plant in the spring or fall when the temperatures are mild and the soil is moist.