The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when you can plant perilla by using the USDA zone info for Birdsboro.

Planting Calendar for Perilla

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

Since perilla do not do well in cold weather you have to wait until after the last frost has passed before you can plant them.

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

The last month that you can plant perilla and expect a good harvest is probably August. You probably don't want to wait any later than that or else 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 April 15 in Birdsboro. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Birdsboro is an average the actual date of last frost is different every year. Half of the time in Birdsboro you get a frost after April 15 so always be ready to protect your perilla in the event of a surprise late frost.

USDA Zone Info for Birdsboro

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Birdsboro

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