Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of making a decision about when it's the best time to plant perilla is to consult the USDA zone info for Attleboro.

Planting Calendar for Perilla

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

Perilla require warm weather which means that you must wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant perilla in Attleboro 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. Any later than that and your perilla may not have a chance to fully mature. Starting your perilla indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Attleboro. You can expect an average low temperature of -5°F in the coldest months of winter.

Keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Attleboro and it can change quite a bit from year to year. Since half of the time in Attleboro last frost occurs after April 15 be ready to cover your perilla in the event of a surprise late frost.

USDA Zone Info for Attleboro

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 Attleboro

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