Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when you can plant spinach is to examine the USDA zone info for Berkley.

Planting Calendar for Spinach

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

Spinach tend to make it in some cold which tells us that you can plant them a bit earlier in the year than more sensitive plants.

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

The last month that you can plant spinach and expect a good harvest is probably September. You probably don't want to wait any later than that or else your spinach may not have a chance to fully mature. Starting your spinach indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Berkley. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Berkley may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Berkley you get surprised by a frost after April 15 so just be sure to be ready to cover your spinach if you have a late frost.

USDA Zone Info for Berkley

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Berkley

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