Port Costa's Hardiness Zone

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

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

Metal Seed Storage Box

Organized storage solution for your seed collection.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

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

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Metal Seed Storage Box

Organized storage solution for your seed collection.

Cluck Around Sign

Whimsical sign for your chicken coop area.