Before planting it is a good idea to find your USDA Zone info to figure out 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 common way of estimating when it's possible to plant perilla is to examine the USDA zone info for Gardena.

Planting Calendar for Perilla

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

Perilla do not do well in cold weather which means that it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant perilla in Gardena is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant perilla and expect a good harvest is probably September. Any later than that and your perilla may not have a chance to grow to maturity. Starting your perilla indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is January 31 in Gardena. You should expect an average low temperature of 35°F in the coldest months of winter.

Keep in mind that USDA zone info for Gardena is just an average and the actual date of last frost changes from year to year. Since half of the time in Gardena last frost occurs after January 31 be ready to protect your perilla in the event of one of those late frosts.

USDA Zone Info for Gardena

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Gardena

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