Learn About Your Hardiness Zone

What Are Hardiness Zones?

Hardiness zones were defined by the United States Department of Agriculture (USDA) in 1960. Each zone was originally separated by 10 degrees Fahrenheit. The map was updated in 1990 to further distinguish hardiness zones by separating each zone into subzones A and B, which were separated by 5 degrees Fahrenheit, rather than 10.

Find your hardiness zone. Enter your zip code:

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What roses can I grow in my zone?

Zones 1, 2, & 3

Zones 1, 2, and 3 are located in the coldest parts of the US, including Alaska and the northernmost regions of the nation. Unfortunately, most rose breeds cannot survive in this extremely cold climate.

Zone 4

Zone 4 is a cold and harsh weather environment for some rose species. However, a variety of hardy roses can still bloom beautifully in this region of the country.

If you live in zone 4, you’ll want to plant the hardiest roses available in your garden. Many of our shrub and bush roses can withstand extremely low temperatures like this.

Roses planted in zone 4 can withstand temperatures as low as 20° Fahrenheit.

Zones 5, 6, 7 & 8

Cold temperatures are not typically a serious concern for roses planted in zones 5, 6, 7, or 8. These zones can typically grow a wide range of plants with minimal maintenance or upkeep.

Virtually every product in our catalog can thrive in zones 5 – 8. Be sure to follow our planting instructions and rose care guide for best results.

Zones 9 & 11

Zones 9, 10, and 11 are the hottest hardiness zones in the United States. Roses can be reasonably delicate in these zones. Some plants exhaust their tolerance for heat in zone 9 and cannot survive in zones 10 and 11. However, if you plant both hardy and disease resistant roses, you will enjoy a beautiful garden for at least a few months each year.

It’s essential to ensure your roses stay well watered and are exposed to sunlight for about 6-8 hours a day.

Each rose in our catalog lists the hardiness zones where it will thrive.

Click here for more rose care tips.