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

It's a good idea to determine when it's the best time to plant perilla by checking out the USDA zone info for Crest Hill.

Planting Calendar for Perilla

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

Perilla are not cold tolerant which tells us that you have to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant perilla in Crest Hill 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. You can get started a little bit earlier by starting your perilla indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Crest Hill. In the coldest months of winter you can expect an average low temperature of -15°F.

Remember that USDA zone info for Crest Hill is just an average and the actual date of last frost is different every year. Since half of the time in Crest Hill it frosts late in the year after April 15 be ready to protect your perilla if you have a late frost.

USDA Zone Info for Crest Hill

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Crest Hill

You may be interested in your other planting guides for Crest Hill.