A hardiness zone is a numbered map area that shows how cold it gets in a region—helping you know which plants can survive outdoors in your local climate.
Why is a Hardiness Zone Important?
Plants don’t all like the same weather. Some love the cold, others can’t handle frost at all. Hardiness zones help you choose plants that won’t die in your winter weather.
- Right plants, right place: You’ll know which plants are likely to thrive in your yard.
- Save time and money: Avoid planting things that won’t survive your winters.
- Better garden planning: Know when to plant and what to expect based on your zone.
Example
Let’s say you live in Zone 8—a place where the coldest winter temperatures usually don’t go below 10°F (-12°C). You can safely grow plants like lavender, rosemary, and peonies.
But if you live in Zone 3 (much colder!), those plants may not survive the winter. Instead, you'd look for cold-hardy options like coneflowers or Siberian iris.
Tip for Beginners
You can find your zone by searching “USDA Hardiness Zone” (for the U.S.) or checking your country’s gardening site. Once you know your zone, look for plant labels or seed packets that list zone numbers—it’s that simple!
Stay tuned to The Garden Glossary for more beginner-friendly gardening guides!