Big Rock's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Big Rock a growing zone designation of 5a. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Big Rock's climate. If you are looking for plants suitable for growing in the Big Rock area, head on over to our page on plants that grow well in Big Rock, IA.

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Stainless Steel Garden Tool Set

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

Reusable Grow Bags

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

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Raised Garden Planter

Elevated planter for easy access and better drainage.

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 Big Rock is in growing zone 5a this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Big Rock'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: 5a

Zip Codes: 52777, 52745

Longitude: -90.8265

Latitude: 41.7691

Lowest Avg Temperatures (F): -20 to -15