What Growing Zone Is North Harlem Colony?

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

Latest MT growing zone map

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

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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 North Harlem Colony is in growing zone 4a this means that plants there can survive temperatures as low as -30 to -25 degrees Fahrenheit. Plants for North Harlem Colony'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.

USDA growing zone map of the United States

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

map of usda hardiness zone changes from 2012 to 2023

Half zone changes from 2012 to 2023

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!

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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 North Harlem Colony, MT.

The USDA hardiness zone is 4a for North Harlem Colony. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

North Harlem Colony's Growing Zone Details

USDA Growing Zone: 4a

Zip Codes: 59526

Longitude: -108.7556

Latitude: 48.5844

Lowest Avg Temperatures (F): -30 to -25

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Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

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Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Map of the North Harlem Colony Area

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Organized storage solution for your seed collection.

Raised Garden Bed Kit

Easy-to-assemble raised garden bed for better soil control and drainage.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

Shiitake Mushroom Kit

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Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

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.

Metal Seed Storage Box

Organized storage solution for your seed collection.

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Raised Garden Bed Kit

Easy-to-assemble raised garden bed for better soil control and drainage.

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