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.

One way of estimating when it's a good idea to plant perilla is to look at the USDA zone info for Steilacoom.

Planting Calendar for Perilla

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

You really shouldn't plant perilla until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant perilla in Steilacoom 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 couple of weeks earlier by starting your perilla indoors.

Last Frost Date

On average the last frost has passed is on March 15 in Steilacoom. You should expect an average low temperature of 15°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Steilacoom is an average and the actual date of last frost changes from year to year. Since half of the time in Steilacoom you get a frost after March 15 be ready to protect your perilla if you have a late frost.

USDA Zone Info for Steilacoom

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Steilacoom

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