Texas FFA Nursery Landscape Practice Exam

What is the approximate range of average annual minimum temperature for Plant Hardiness Zone 5?

1. 20 to 30 degrees

2. 10 to 20 degrees

3. -20 to -10 degrees

4. -30 to -20 degrees

The correct answer is: 10 to 20 degrees

The average annual minimum temperature range for Plant Hardiness Zone 5 is actually between -20 to -10 degrees Fahrenheit. This zone represents areas that can withstand winter temperatures as low as -20 degrees Fahrenheit. Understanding hardiness zones is crucial for selecting plants that will thrive in a specific climate, as they are based on the lowest average temperatures recorded in a region. Zone 5 is ideal for a wide variety of plants, including many perennials, shrubs, and trees that are adapted to survive cold winters. The other temperature ranges provided do not accurately reflect the temperature extremes that zone 5 can endure.