When to Plant Spinach in Highland, CA

Before planting it is a good idea to find your USDA Zone info to figure out 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.

In Highland you can determine when it's possible to plant spinach by reviewing 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 mild cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant spinach
Possibly ok, but a risky time to plant spinach
Probably not a good time to plant spinach

The earliest that you can plant spinach in Highland 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. You probably don't want to wait any later than that or else your spinach may not have a chance to grow to maturity. 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 Highland. In the coldest months of winter you can expect an average low temperature of 25°F.

Always keep in mind that USDA zone info for Highland may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Highland last frost occurs after February 15 be ready to protect your spinach if you have one of those late frosts.

USDA Zone Info for Highland

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low25°F
Highest Expected Low30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Highland

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