Mill Valley's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Mill Valley a growing zone designation of 10a. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Mill Valley's climate. If you are looking for plants suitable for growing in the Mill Valley area, head on over to our page on plants that grow well in Mill Valley, CA.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Raised Garden Bed Kit

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

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

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

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Hoeing Ain't Easy Garden Sign

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

Deluxe Plastic Watering Can

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