When to Plant Perilla in Greenville, IL

One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to figure out when it's possible to plant perilla by referring to the USDA zone info for Greenville.


Planting Calendar for Perilla

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

Since perilla are not cold tolerant you must wait until after all chance of frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant perilla
Possibly ok, but a risky time to plant perilla
Probably not a good time to plant perilla

The earliest that you can plant perilla in Greenville 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 really do well. Starting your perilla indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Greenville. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Greenville is not always accurate the actual date of last frost will vary from year to year. Half of the time in Greenville you get surprised by a frost after April 15 so always be ready to protect your perilla if you have a surprise late frost.

USDA Zone Info for Greenville

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 Greenville

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