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

In Glendora you can figure out when to plant perilla by reviewing the USDA zone info.

Planting Calendar for Perilla

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

Since perilla do not do well in cold weather it's necessary to wait until after the last frost before you can plant them.

The earliest that you can plant perilla in Glendora 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 fully mature. You can get started a couple of weeks earlier by starting your perilla indoors.

Last Frost Date

The average date of last frost is January 31 in Glendora. It might get as low as 30°F during the coldest months of winter.

Always keep in mind that USDA zone info for Glendora may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Glendora you get surprised by a frost after January 31 be ready to protect your perilla if you have one of those late frosts.

USDA Zone Info for Glendora

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 Glendora

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