Portland's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Portland 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 Portland's climate. If you are looking for plants suitable for growing in the Portland area, head on over to our page on plants that grow well in Portland, ND.

Metal Seed Storage Box

Organized storage solution for your seed collection.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

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 Portland is in growing zone 4a this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Portland'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.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Hoeing Ain't Easy Garden Sign

Fun and decorative garden sign to add personality to your space.