One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when it's possible to plant spinach by looking at the USDA zone info for Huron.

Planting Calendar for Spinach

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

You can plant spinach a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant spinach in Huron 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 fully mature. If you are starting your spinach indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in Huron. In the coldest months of winter you should expect an average low temperature of 20°F.

It's important to remember that USDA zone info for Huron is not always accurate and the actual date of last frost changes from year to year. Half of the time in Huron you get a frost after February 15 so make sure that you are ready to cover your spinach if you have a surprise late frost.

USDA Zone Info for Huron

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 Huron

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