North Jersey’s planting zones range from 6b to 7b. That means that the lowest annual temperatures are between -5 and 10 degrees Fahrenheit. The coldest counties are Sussex, Warren, Morris, and western Passaic. On the other hand, the east coast is warmer.
Knowing your planting zones, also known as hardiness zones, helps you understand which grass and plants thrive in your area. Pick the wrong grass and plants, and they’ll wither.
Hardiness zone 6b: Most of north Jersey
Most of North Jersey, especially the northwest, falls into hardiness zone 6b. That means the lowest annual temperature goes down to -0 to -5 degrees Fahrenheit. This includes:
County | Where | Examples of cities or towns |
Bergen | A small part of the west | Parts of Mahwah and Oakland |
Morris | The west | Rockaway, Wharton, Chester |
Passaic | Much of the county | West Milford, Macopin |
Sussex | The entire county | Wantage, Branchville, Andover Township |
Warren | Most of the county except the south | Blairstown, Hackettstown, Washington |
Not sure what hardiness zones are and why you should know yours? Check out our article, ”How to Use the Plant Hardiness Zone Map in Your Yard.”
Hardiness zone 7a: Northeastern Jersey
As you look east, North Jersey begins to transition into hardiness zone 7a. The lowest annual temperature here is 0 to 5 degrees Fahrenheit. That includes:
County | Where | Examples of cities or towns |
Bergen | Most of the county, except a small part of the west | North Arlington, Alpine, Waldwick |
Essex | Most of the county, except the east | Fairfield, Millburn, West Orange |
Hardiness zone 7b: A pocket on the northeast coast
Only a small part of eastern North Jersey is in hardiness zone 7b. That includes the east of Essex; cities like Newark, and the townships of Belleville and Nutley. It also includes all of Hudson County. The annual temperatures here don’t go below 5 to 10 degrees Fahrenheit.
County | Where | Examples of cities or towns |
Essex | The east | Newark, Belleville, Nutley |
Hudson | The entire county | Hoboken, Bayonne |
Passaic | A small part in the west | Clifton |
Let a pro take care of your Newark lawn. Get an instant quote.
Other NJ hardiness zones
The rest of New Jersey has hardiness zones ranging from 6b to 8a. Read about them in our article New Jersey planting zones. Make sure you also find out which grasses to plant and when to plant them.
Trust the pros
The wrong choice of grass and plants can turn your yard upside down. Our pros already know which grasses and plants thrive in your area. Get an instant quote.
Main Photo Credit: Jin | Adobe Stock Free | License