What Growing Zone Is Key Biscayne?

Our records indicate the United States Department of Agriculture has given Key Biscayne a growing zone designation of 11a. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Key Biscayne's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Key Biscayne's weather data from 1991 - 2020 in their analysis.

map of growing zone 11aLatest FL growing zone map

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

Seed Starting Trays

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.
Shiitake Mushroom Kit

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.
Metal Seed Storage Box

Metal Seed Storage Box

Organized storage solution for your seed collection.
Fiskars Garden Harvest Basket

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.
Small Greenhouse Kit

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.
map of growing zone 11aLatest FL 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 Key Biscayne is in growing zone 11a this means that plants there can survive temperatures as low as 40 to 45 degrees Fahrenheit. Plants for Key Biscayne'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 Key Biscayne 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 2023Half 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!

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 Key Biscayne, FL.

The USDA hardiness zone is 11a for Key Biscayne. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

Key Biscayne's Growing Zone Details

USDA Growing Zone: 11a

Zip Codes: 33149

Longitude: -80.1653

Latitude: 25.6908

Lowest Avg Temperatures (F): 40 to 45

Raised Garden Planter

Raised Garden Planter

Elevated planter for easy access and better drainage.
Self Watering Plant Pots

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.
Reusable Grow Bags

Reusable Grow Bags

Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.
Raised Garden Bed Kit

Raised Garden Bed Kit

Easy-to-assemble raised garden bed for better soil control and drainage.
Steel Hori Hori Weeding Knife

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Map of the Key Biscayne Area

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Shiitake Mushroom Kit

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.
Metal Seed Storage Box

Metal Seed Storage Box

Organized storage solution for your seed collection.
Hoeing Ain't Easy Garden Sign

Hoeing Ain't Easy Garden Sign

Fun and decorative garden sign to add personality to your space.
Worm Composting Kit

Worm Composting Kit

Complete kit for starting your own worm composting system.
Rustic Iron Garden Trellis

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.

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.

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Large Greenhouse Kit

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.
Small Greenhouse Kit

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.
Self Watering Plant Pots

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.
Stainless Steel Garden Tool Set

Stainless Steel Garden Tool Set

Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Metal Seed Storage Box

Metal Seed Storage Box

Organized storage solution for your seed collection.

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