One of the best tools that you have as gardeners to help us determine 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.

In Sullivan you can determine when you can plant spinach by using 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 moderate cold which means that you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant spinach in Sullivan 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 really do well. Starting your spinach indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Sullivan. You should expect an average low temperature of 5°F in the coldest months of winter.

It's important to remember that USDA zone info for Sullivan is just an average and the actual date of last frost changes from year to year. Half of the time in Sullivan last frost occurs after April 15 so make sure that you are prepared to cover your spinach if you have one of those late frosts.

USDA Zone Info for Sullivan

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in Sullivan

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