One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Romeoville should be reviewed to estimate when to plant black pepper.

Planting Calendar for Black pepper

Frost tolerance for black pepper:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

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

The earliest that you can plant black pepper in Romeoville 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 black pepper and expect a good harvest is probably August. Any later than that and your black pepper may not have a chance to really do well. Starting your black pepper indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Romeoville the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Romeoville is just an average the actual date of last frost is different every year. Since half of the time in Romeoville you get a frost after April 15 be ready to cover your black pepper in the event of a surprise late frost.

USDA Zone Info for Romeoville

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Romeoville

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