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.

It's possible to estimate when you can plant cilantro by looking at the USDA zone info for Tiffin.

Planting Calendar for Cilantro

Frost tolerance for cilantro:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since cilantro do ok in moderate cold you can plant them slightly earlier in the year than other frost tender plants.

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

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

Last Frost Date

In Tiffin the average date of last frost happens on April 15. You should expect an average low temperature of -10°F in the coldest months of winter.

It's important to remember that USDA zone info for Tiffin is an average and the actual date of last frost will vary from year to year. Half of the time in Tiffin it frosts late in the year after April 15 so make sure that you are ready to cover your cilantro in the event of a surprise late frost.

USDA Zone Info for Tiffin

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 Tiffin

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