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

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

Shiitake Mushroom Kit

Hydroponic Garden Grow Kit

Rustic Iron Garden Trellis

Deluxe Plastic Watering Can

Metal Arbor Trellis

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 Grand Isle is in growing zone this means that plants there can survive temperatures as low as degrees Fahrenheit. Plants for Grand Isle'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 Grand Isle 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!
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 Grand Isle, ME.
The USDA hardiness zone is null for Grand Isle. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.
Grand Isle's Growing Zone Details
USDA Growing Zone:
Zip Codes: 4746
Longitude: -68.1552
Latitude: 47.3065
Lowest Avg Temperatures (F):

Cluck Around Sign

Hoeing Ain't Easy Garden Sign

Self Watering Plant Pots

Large Greenhouse Kit

Wooden Chicken Coop
Map of the Grand Isle Area
All Towns In ME

Raised Garden Bed Kit

Rustic Iron Garden Trellis

Brass Decorative Faucet Handle

Brass Watering Can

Deluxe Plastic Watering Can
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.

Self Watering Plant Pots

Shiitake Mushroom Kit

Worm Composting Kit

Hydroponic Garden Grow Kit

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