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

You can estimate when it's possible to plant perilla in Ellensburg by referring to 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.

Perilla are not cold tolerant which tells us that you must wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant perilla in Ellensburg 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 really do well. You can get started a little bit earlier by starting your perilla indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Ellensburg. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Ellensburg is just an average the actual date of last frost will vary from year to year. Half of the time in Ellensburg it frosts late in the year after April 15 so make sure that you are ready to cover your perilla if you have a late frost.

USDA Zone Info for Ellensburg

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 Ellensburg

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