Understanding the Updated USDA Hardiness Zone Map

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Posted on 12/29/2023

New Opportunities for Gardeners to Grow More Plants!

As gardeners, we understand the impact that local climate conditions can have on our plants. The USDA Hardiness Zone Map, a crucial tool in this regard, has recently been updated, presenting new opportunities for gardeners. At Jackson & Perkins, we're here to guide you through these changes and what they mean for your current plants and future plant selections.

USDA Hardiness Zone Map November 2023

Why the Zone Map Exists

The USDA Hardiness Zone Map is designed to help gardeners and farmers understand which plants are most likely to thrive in their location. The map divides North America into Zones based on the average annual minimum winter temperature. Each Zone reflects a range of temperatures, allowing gardeners to make informed decisions about what plants are suitable for their climate.


The Significance for Gardeners

For gardeners, the USDA Hardiness Zone Map is like a compass, guiding them toward successful planting and cultivation. By selecting plants that are appropriate for their Zone, gardeners increase the likelihood of plant survival and health. This knowledge is particularly beneficial for perennials, trees, and shrubs – plants that form the backbone of many gardens.


Periodic Changes in Zones

Climate patterns are not static; they change over time. So, the USDA updates the Hardiness Zone Map periodically to reflect these changes. Factors like temperature shifts, frequency of extreme weather events, and long-term climate trends contribute to these updates. As gardeners, it’s important that we stay informed about these changes, as they can impact the success of our gardens.

Embracing the Changes

The updated map isn't just about challenges; it's about new opportunities. Changes in the Zones might mean that you can now grow plants that previously wouldn't have thrived in your area. This may open a whole new assortment of perennial plants you can include in your garden! From exotic flowers to unique shrubs, the evolving climate could bring exciting new choices to your garden.


In November of 2023, the USDA updated the Zone ranges, giving you a chance to expand your gardening options. So, browse our extensive collection of roses, perennials, and more, to see what may have changed for you. Be sure to plug your Zip Code into our Zone Finder to guide your plant selections using the new criteria from the USDA.