Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. 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 Oak Lawn can be looked at to determine when you can plant alternaria.

Planting Calendar for Alternaria

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

Since alternaria are not cold tolerant you must wait until after the last frost before you can plant them.

The earliest that you can plant alternaria 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 alternaria and expect a good harvest is probably August. You probably don't want to wait any later than that or else your alternaria may not have a chance to really do well. Starting your alternaria 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 Oak Lawn. It might get as low as -10°F during the coldest months of winter.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Oak Lawn and it can change quite a bit from year to year. Since half of the time in Oak Lawn you get a frost after April 15 be ready to cover your alternaria in the event of 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.