One of the first steps you take when you are getting a good idea 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.

By using the USDA zone info for Northbrook you should be able to determine when it's the best time to plant nicotiana.

Planting Calendar for Nicotiana

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

Nicotiana are not cold tolerant which tells us that it's necessary to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant nicotiana in Northbrook 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 nicotiana and expect a good harvest is probably August. You probably don't want to wait any later than that or else your nicotiana may not have a chance to really do well. Starting your nicotiana 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 Northbrook. It might get as low as -15°F during the coldest months of winter.

It's important to remember that USDA zone info for Northbrook is an average and the actual date of last frost changes from year to year. Since half of the time in Northbrook you get a frost after April 15 be ready to cover your nicotiana in the event of a late frost.

USDA Zone Info for Northbrook

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 Northbrook

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