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

You will be able to determine when it's a good idea to plant black eyed susans by checking out the USDA zone info for Oak Lawn.

Planting Calendar for Black Eyed Susans

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

Since black eyed susans do not do well in cold weather you really should wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant black eyed susans in Oak Lawn 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 eyed susans and expect a good harvest is probably August. If you wait any later than that and your black eyed susans may not have a chance to fully mature. You can get started a little bit earlier by starting your black eyed susans indoors.

Last Frost Date

The average date of last frost is April 15 in Oak Lawn. In the coldest months of winter you should expect an average low temperature of -10°F.

Always keep in mind that USDA zone info for Oak Lawn is just an average and the actual date of last frost is different every year. Since half of the time in Oak Lawn you get surprised by a frost after April 15 be ready to protect your black eyed susans if you have one of those late frosts.

USDA Zone Info for Oak Lawn

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Oak Lawn

You may be interested in your other planting guides for Oak Lawn.