The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Slinger you can determine when it's a good idea to plant perilla by checking out the USDA zone info.

Planting Calendar for Perilla

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

It's a bad idea to plant perilla until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant perilla in Slinger 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. If you wait any later than that and your perilla may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your perilla indoors.

Last Frost Date

On average the last frost is on April 15 in Slinger. You can expect an average low temperature of -20°F in the coldest months of winter.

It's important to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Slinger and it changes from year to year. Since half of the time in Slinger it frosts late in the year after April 15 be ready to cover your perilla in the event of one of those late frosts.

USDA Zone Info for Slinger

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Slinger

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