When can I plant Perilla in Zone 9b

One of the first steps we take when we are figuring out our gardening schedule is find our USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

By looking at the USDA zone info for Zone 9b it's a good idea to estimate when it's possible to plant perilla.


Planting Calendar for Perilla

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

Since perilla do not do well in cold weather it's necessary to wait until after all chance of frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant perilla
Possibly ok, but a risky time to plant perilla
Probably not a good time to plant perilla

The earliest that you can plant perilla in Zone 9b 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. If you are starting your perilla indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Zone 9b. We should expect an average low temperature of 25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Zone 9b is an average and our actual date of last frost can change quite a bit from year to year. Half of the time in Zone 9b it frosts late in the year after February 15 so make sure that you are prepared to cover your perilla if we have a surprise late frost.

USDA Zone Info for Zone 9b

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 Low25°F
Highest Expected Low30°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 Zone 9b

You may be interested in our other planting guides for Zone 9b.