Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant spinach in Gustine should be figured out by referring to the USDA zone info.

Planting Calendar for Spinach

Frost tolerance for spinach:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Spinach can survive in some cold which tells us that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant spinach in Gustine is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant spinach and expect a good harvest is probably October. If you wait any later than that and your spinach may not have a chance to fully mature. You can get started a few weeks earlier by starting your spinach indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Gustine. In the coldest months of winter you can expect an average low temperature of 20°F.

Remember that USDA zone info for Gustine may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Gustine it frosts late in the year after February 15 be ready to protect your spinach in the event of a late frost.

USDA Zone Info for Gustine

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Gustine

You may be interested in your other planting guides for Gustine.