Helena's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Helena a growing zone designation of 7a. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Helena's climate. If you are looking for plants suitable for growing in the Helena area, head on over to our page on plants that grow well in Helena, OK.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Stainless Steel Garden Tool Set

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

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Deluxe Plastic Watering Can

High-capacity watering can with comfortable grip and precise spout.

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 Helena is in growing zone 7a this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Helena'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.

Brass Watering Can

Elegant brass watering can with classic design and durability.

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.