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 estimate when to plant bleeding hearts by reviewing the USDA zone info for Oak Lawn.

Planting Calendar for Bleeding Hearts

Frost tolerance for bleeding hearts:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Bleeding Hearts do ok in moderate cold which tells us that you can start planting them slightly earlier than plants that are more sensitive to the cold.

The earliest that you can plant bleeding hearts in Oak Lawn is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant bleeding hearts and expect a good harvest is probably August. If you wait any later than that and your bleeding hearts may not have a chance to really do well. You can get started a little bit earlier by starting your bleeding hearts 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.

Keep in mind that USDA zone info for Oak Lawn is just an average and the actual date of last frost will vary from year to year. Since half of the time in Oak Lawn it frosts late in the year after April 15 be ready to protect your bleeding hearts if you have a surprise late frost.

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.