One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Yakima 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 the last frost when the weather gets warmer.

It's a bad idea to plant perilla until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant perilla in Yakima 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 few weeks earlier by starting your perilla indoors.

Last Frost Date

The average date of last frost is April 15 in Yakima. It might get as low as -5°F during the coldest months of winter.

Always keep in mind that USDA zone info for Yakima is an average and the actual date of last frost is different every year. Half of the time in Yakima it frosts late in the year after April 15 so be sure to be ready to cover your perilla if you have a surprise late frost.

USDA Zone Info for Yakima

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Yakima

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