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.

The best time to plant perilla in Shasta Lake can be determined by referring to the USDA zone info.

Planting Calendar for Perilla

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

Perilla require warm weather which tells us that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant perilla in Shasta Lake is March. However, you really should wait until April 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. If you wait any later than that and your perilla may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your perilla indoors.

Last Frost Date

On average the last frost is on February 15 in Shasta Lake. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Shasta Lake is not always accurate the actual date of last frost changes from year to year. Half of the time in Shasta Lake last frost occurs after February 15 so make sure that you are ready to protect your perilla if you have a surprise late frost.

USDA Zone Info for Shasta Lake

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Shasta Lake

You may be interested in your other planting guides for Shasta Lake.