Portland's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Portland a growing zone designation of 6a. 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, MI.

Brass Watering Can

Elegant brass watering can with classic design and durability.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Stainless Steel Garden Tool Set

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

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.

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 6a 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.

Reusable Grow Bags

Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Stainless Steel Garden Tool Set

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

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.