The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By using the USDA zone info for Oakland it's a good idea to estimate when it's the best time to plant perilla.

Planting Calendar for Perilla

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

Since perilla require warm weather you really should wait until after the last frost before you can plant them.

The earliest that you can plant perilla in Oakland 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. If you wait 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 January 31 in Oakland. It might get as low as 30°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Oakland is not always accurate and the actual date of last frost changes from year to year. Half of the time in Oakland there is a last frost after January 31 so make sure that you are prepared to protect your perilla in the event of one of those late frosts.

USDA Zone Info for Oakland

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Oakland

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