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USDA Hardiness Zones Across the U.S. - Spotlight on Kentucky!

  • Writer: Marcus Bergin
    Marcus Bergin
  • Aug 14, 2024
  • 2 min read

Discover Your USDA Hardiness Zone! 


Are you ready to create a thriving garden in Kentucky? Understanding your USDA Hardiness Zone is essential for selecting plants that can flourish in the state’s varied climate, from the rolling hills of the Bluegrass region to the Appalachian Mountains in the east. Let’s explore the zones across Kentucky and find the best shade-tolerant plants for your garden!


USDA Hardiness Zone map of Kentucky highlighting Zones 6-7, showing the state's climate variation from the cooler northern regions to the slightly warmer southern areas.

Kentucky: Zones 6-7


Kentucky’s climate is characterized by hot, humid summers and mild winters, making it ideal for a wide range of plants. Here’s a closer look at the zones in Kentucky and some shade-tolerant plants that will thrive in each:


  • Zone 6:


    Found in the northern and central parts of Kentucky, including cities like Louisville, Lexington, and Frankfort, where winter temperatures can drop to -10 to 0°F. These shade-tolerant plants are perfect for the cooler areas:


    • Hostas (Hosta spp.): A staple in shade gardens, Hostas offer lush foliage in a variety of colors and patterns, thriving in the cool, shaded areas of Zone 6.

    • Bleeding Heart (Dicentra spectabilis): Known for its delicate, heart-shaped flowers, Bleeding Heart adds beauty to shady garden spots in spring and early summer.

    • Astilbe (Astilbe spp.): With its feathery plumes of pink, white, or red flowers, Astilbe brightens up shaded gardens and prefers the cooler conditions of Zone 6.


  • Zone 7:


    Covers the southern parts of Kentucky, including areas like Bowling Green and the Appalachian foothills, where winter temperatures range from 0 to 10°F. This slightly warmer zone supports a wide variety of shade-tolerant plants:


    • Ferns: Varieties like Maidenhair Fern (Adiantum spp.) and Christmas Fern (Polystichum acrostichoides) thrive in the rich, moist soils of shaded areas in Zone 7.

    • Rhododendrons (Rhododendron spp.): Known for their large, showy blooms, Rhododendrons thrive in the acidic, shaded soils typical of this region.

    • Hydrangeas (Hydrangea spp.): With their large, colorful blooms, Hydrangeas add a splash of color to shaded garden spots in Zone 7.


Why It Matters:


  • Optimal Plant Selection: Choosing plants that are well-suited to your specific zone ensures they will thrive and contribute to a healthy, beautiful garden.

  • Effective Garden Planning: Understanding your zone helps you plan your planting schedule, allowing you to take full advantage of Kentucky’s growing seasons.

  • Sustainable Gardening: By selecting plants that naturally thrive in your zone’s conditions, you reduce the need for extra water, fertilizers, and pesticides, promoting a more eco-friendly garden.


Get Involved: Share Your Gardening Experience


We want to hear from you! Whether you’re gardening in the cooler regions of Zone 6 or the slightly warmer areas of Zone 7, your experiences and tips can inspire and guide others.


Join the Conversation:


  • Comment Below: Share your gardening successes, challenges, and questions with fellow Kentucky gardeners.

  • Join Our Facebook Group: Connect with a community of shade gardening enthusiasts by joining our Shade Gardening Group on Facebook. It’s a great place to exchange ideas, find inspiration, and support your gardening journey.


Let’s grow together, Kentucky! 🌻

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