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

The USDA zone info for Fostoria can be read to determine when it's the best time to plant perilla.

Planting Calendar for Perilla

Frost tolerance for perilla:	Not tolerant of frost.
When to plant:	After the last frost.

You should not plant perilla until after all chance of frost has passed because they are not cold tolerant.

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

The last month that you can plant perilla and expect a good harvest is probably August. Any later than that and your perilla may not have a chance to grow to maturity. Starting your perilla indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Fostoria. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Fostoria is not always accurate the actual date of last frost will vary from year to year. Half of the time in Fostoria there is a last frost after April 15 so always be ready to cover your perilla in the event of a late frost.

USDA Zone Info for Fostoria

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 Fostoria

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