Waterville, Maine Hardiness Zones (2024)

FAQs

What hardiness zone is Waterville Maine? ›

According to the 2023 USDA Hardiness Zone Map Waterville, Maine is in Zones 5b (-15°F to -10°F). This is a change from the 2012 USDA Hardiness Zone Map which has Waterville in Zones 5a (-20°F to -15°F).

Most of Maine is considered zones 4b, 5a, and 5b, although there are some area along the Midcoast and islands that touch 6a. The majority of Knox, Waldo, Lincoln and Hanco*ck Counties are considered 5b.

It is also sometimes possible to take a plant that is one zone less hardy than your zone and bring it through the winter. If you live in zone 5, a zone 6 plant could be perennial for you.

Most of Maine is in zones 3-5. Find your zone here.

Zone 3 plants can withstand cold temperatures of -40°F to -30°F. The upper Midwest states and some northeast states hold most of Zone 3, such as northern parts of Montana, North Dakota, Minnesota, Wisconsin, Wyoming, New York, and Maine. Common Plants: Foxglove (Digitalis selections)

Maine spans Plant Hardiness Zones 3-6. Each zone is based on the 30-year average of the single coldest temperature recorded each winter. Zone 3 is 10 degrees F colder than Zone 4, etc. In addition, each zone is split in half.

District 15 shall be that portion of the state located within the following bounds: Beginning at the point where State Highway #110 intersects the Maine-New Hampshire border in Newfield; then following the Maine-New Hampshire border northerly to the Government Rd in Stow; then following the Government Rd easterly to ...

Where is Zone 4? The USDA Hardiness Zone 4 comprises some of the coldest and northernmost areas of the continental United States. It stretches in a crescent shape from northern Idaho to northern New York and New England, and from the Canadian border south into parts of the Colorado Rockies.

A plant that is hardy in zone 8 – 10 probably will not survive a zone 6 winter since there is a 20 degree average low difference, but you may find success growing a zone 8 – 10 plant in zone 7, or a zone 7 plant in zone 6.

How often do hardiness zones change? ›

These zones—based on each location's average annual minimum temperature—determine which plants can grow and thrive in different parts of the country. As the coldest times of year warm, plant hardiness zones across the contiguous U.S. have shifted to the north over the three most recent 30-year normal periods.

For example, a plant that is hardy in zone 5 should be able to withstand minimum winter temperatures of at least -20 degrees Fahrenheit, while a plant that is hardy in zone 6 should be able to withstand minimum winter temperatures of at least -10 degrees Fahrenheit.

Western Maine (Zone 5)

The USDA Hardiness Zone 5 stretches from southern Maine and central New England to northern Nevada and western Oregon. The westernmost areas of Zone 5 are sparsely distributed – the bulk of Zone 5 is concentrated in the central United States, comprising Nebraska, Iowa, northern Illinois, and northern Indiana.

For Maine, we recommend the following greenhouses:

Sungrow Greenhouses withstand snow and wind like no other. Sigma Greenhouses have a traditional look with an amazing, modern, heavy duty design.

ZIP Code 04043 - Kennebunk Maine is in 2023 USDA Hardiness Zones 6a (-10°F to -5°F) and 5b (-15°F to -10°F)

According to the 2023 USDA Hardiness Zone Map Bangor, Maine is in Zones 5a (-20°F to -15°F).

1): the Northern zone has a continental climate with cold winters and is influenced by air masses from the west and north; the Southern Interior zone has the warmest summer weather and is influenced by air masses from the south and west; and the Coastal zone has a maritime climate which moderates summer and winter ...