The Plant Guide Online  Β·  Celebrating 15 years online
MAY 1, 2026
Established 2011

The Plant Guide Online

Growing zones & plants for every town in America

What Growing Zone Is Belt?

Our records indicate the United States Department of Agriculture has given Belt a growing zone designation of 4b. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Belt's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Belt's weather data from 1991 - 2020 in their analysis.

β€” Plate β€”MT Β· USDA hardiness
map of growing zone 4b
Latest MT growing zone map

If you are looking for plants suitable for growing in the Belt area, head on over to our page on plants that grow well in Belt, MT.

Recommended Garden Provisions

Sponsored Β· Amazon Associate

Show Belt's growing zone on my site

β€” Plate β€”MT Β· USDA hardiness
map of growing zone 4b
Latest MT growing zone map

The growing zone is a measure of the lowest temperature that a plant can survive based on average lowest year temperatures, helping you to decide what plants would grow best in your particular climate. Since Belt is in growing zone 4b this means that plants there can survive temperatures as low as -25 to -20 degrees Fahrenheit. Plants for Belt's climate should be chosen with this in mind, or plants should be moved inside to keep their core temperature in the right range if necessary.

Some zones may have been changed by the USDA as of 2023. To see if the Belt area has been affected, refer to this map of half zone changes from the 2012 version of the USDA zones to the 2023 version.

The updated map shows that over half of the Southeast has warmed by about half a zone. For gardeners, that means you can now grow plants that tolerate a bit more heat and less frost than before. The tan areas reflect this shift. Meanwhile, the white areas had slight temperature changes, but not enough to move them into a new zone. In the Western U.S., a few spots shifted cooler. That’s not due to a colder climate, but because the new map uses a larger dataset, giving a more accurate picture of local conditions. It's important to keep track of these changes when planning your garden!

Ready to start planning your garden? Browse our curated list of plants recommended for Belt, MT that are matched to this hardiness zone.

Hardiness Zone FAQ

Have questions about hardiness zones and what they mean for your garden? Check out our FAQ below for quick answers to common questions about USDA hardiness zones and how they affect plant selection in Belt, MT.

β„– 01What hardiness zone is Belt, MT?+

The USDA hardiness zone is 4b for Belt. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

β„– 02What does growing zone 4b mean for Belt, MT?+

Growing zone 4b means that plants in Belt, MT can survive temperatures as low as -25 to -20 degrees Fahrenheit. This zone designation helps you choose plants that will thrive in your local climate conditions.

β„– 03How do I use the growing zone information for Belt?+

Keep your growing zone of 4b in mind when choosing plants for Belt. The growing zone tells you the average low temperatures that occur each year in Belt. If you select plants from zones other than 4b, then you may need to provide additional care during the coldest months of the year.

β„– 04Has Belt's growing zone changed?+

The USDA updated their hardiness zone maps in 2023. As a result, Belt may have experienced zone changes. Some areas of the Southeast warmed by half a zone, while areas of the Western United States had their zones lowered as a result of additional data becoming available.

β„– 05What plants grow best in zone 4b?+

Visit our page on the best plants for Belt to see a full list recommendations for the area.

β„– 06Can I grow plants from other zones in Belt?+

While you can try plants from other zones, they may need winter protection or indoor shelter during cold spells. Focus on plants recommended for Belt's climate for the best results.

Belt's Growing Zone Details

USDA Growing Zone: 4b

Zip Codes:

Longitude: -110.9276

Latitude: 47.3873

Lowest Avg Temperatures (F): -25 to -20

Recommended Garden Provisions

Sponsored Β· Amazon Associate

Map of the Belt Area

β€” Map β€”Lat 47.3873, Lon -110.9276
Tile data Β© Google Maps

All Towns In MT

Recommended Garden Provisions

Sponsored Β· Amazon Associate

Plants For Other States

Looking for the best plants in a different area of the United States? Click on a button below to find plants that are ideal for that state's temperatures.

Recommended Garden Provisions

Sponsored Β· Amazon Associate

To see our latest gardening and homesteading projects, you can find us on Facebook, Instagram, and TikTok.