Thornton's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Thornton a growing zone designation of 9b. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Thornton's climate. If you are looking for plants suitable for growing in the Thornton area, head on over to our page on plants that grow well in Thornton, CA.

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.

Raised Garden Bed Kit

Easy-to-assemble raised garden bed for better soil control and drainage.

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 Thornton is in growing zone 9b this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Thornton'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.

Hoeing Ain't Easy Garden Sign

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

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Reusable Grow Bags

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

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.