Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of making a decision about when to plant perilla is to use the USDA zone info for Hopkins.

Planting Calendar for Perilla

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

Since perilla are not cold tolerant it's necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant perilla in Hopkins is May. However, you really should wait until June 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. If you wait 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 the last frost is on May 15 in Hopkins. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Hopkins may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Hopkins you get a frost after May 15 so be sure to be ready to protect your perilla in the event of a late frost.

USDA Zone Info for Hopkins

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Hopkins

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