One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to estimate when it's possible to plant corn by reviewing the USDA zone info for Marion.

Planting Calendar for Corn

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

It's not a good idea to plant corn until after the last frost when the weather gets warmer because they are not cold tolerant.

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

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Marion. It might get as low as 10°F during the coldest months of winter.

Remember that USDA zone info for Marion is an average and the actual date of last frost will vary from year to year. Since half of the time in Marion there is a last frost after March 15 be ready to cover your corn if you have one of those late frosts.

USDA Zone Info for Marion

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Marion

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