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.

A way of getting a good idea when to plant perilla is to examine the USDA zone info for Blaine.

Planting Calendar for Perilla

Frost tolerance for perilla:	Not tolerant of frost.
When to plant:	After the last frost.

Since perilla require warm weather it is necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant perilla in Blaine 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 fully mature. If you are starting your perilla indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Blaine. In the coldest months of winter you can expect an average low temperature of 10°F.

Remember that USDA zone info for Blaine is just an average and the actual date of last frost is different every year. Since half of the time in Blaine there is a last frost after March 15 be ready to cover your perilla in the event of one of those late frosts.

USDA Zone Info for Blaine

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Blaine

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