Mercer's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Mercer a growing zone designation of 4a. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Mercer's climate. If you are looking for plants suitable for growing in the Mercer area, head on over to our page on plants that grow well in Mercer, WI.

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.

Metal Arbor Trellis

Decorative arbor trellis for climbing plants and garden entrance.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Understanding your growing zone is very important because it is a measure of the lowest temperature that a plant can survive, helping you to decide what plants would grow best in your particular climate. Since Mercer is in growing zone 4a this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Mercer'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.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Metal Arbor Trellis

Decorative arbor trellis for climbing plants and garden entrance.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Metal Seed Storage Box

Organized storage solution for your seed collection.