Plant Zones in Maryland

Maryland lies in the mid-Atlantic region of the United States and experiences a range of temperatures, from chilly winters to hot, humid summers. These temperature fluctuations impact what plants are suitable to be grown in the state. Therefore, Maryland is divided into various plant hardiness zones.

The Plant Hardiness Zones in Maryland

The USDA Hardiness Zone Map breaks the United States into various zones based on average annual minimum temperatures recorded in the area. According to the latest hardiness map, Maryland is divided into five different zones. The northern and westernmost part of the state falls under zone 6a, while the southernmost part is in zone 7a. The central portion of the state, including Baltimore, lies in zone 6b.

Growing Plants in the Different Zones

The plant hardiness zones help gardeners in Maryland select plants that are suitable to the local climate. In Maryland, gardeners in colder zones can grow plants that are native to colder regions, while those in warmer regions can grow plants that suit their milder climate. Gardeners in zone 6b can grow perennial plants like the Black-eyed Susan, coneflower, and phlox, while those in zone 7a can grow warm-weather plants like dahlias, sweet potatoes, and tomatoes.

Challenges of Growing Plants in Maryland

While the plant hardiness zones in Maryland guide gardeners towards selecting plants, the state's erratic weather patterns create challenges for growing plants. For example, the state may experience an early fall frost in some years, interrupting the growing season of many plants. During the summer months, high humidity and heat can lead to diseases for some plants, such as powdery mildew or tomato blight. The state's variable rain patterns and soil types also pose some challenges to gardening.

Conclusion

Maryland is divided into several plant hardiness zones, and the zones help gardeners select plants suitable to the local climate. While the state's weather patterns pose challenges to gardening, it is still possible to grow a variety of plants in Maryland. By understanding which plants suit the different zones, and with some knowledge and experience, one can create a beautiful garden in the area.