The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Oak Lawn should be reffered to in order to determine when it's a good idea to plant pentas.

Planting Calendar for Pentas

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

Since pentas are not cold tolerant it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant pentas 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 pentas and expect a good harvest is probably August. Any later than that and your pentas may not have a chance to grow to maturity. You can get started a little bit earlier by starting your pentas indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Oak Lawn. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Oak Lawn may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Oak Lawn you get surprised by a frost after April 15 so just be sure to be ready to cover your pentas 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.