Before planting it is a good idea to find your USDA Zone info to estimate 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 earliest that you can plant sweet corn in Gatlinburg should be estimated by using the USDA zone info.

Planting Calendar for Sweet corn

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

Sweet corn tend to make it in some cold which tells us that you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant sweet corn in Gatlinburg 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 sweet corn and expect a good harvest is probably August. Any later than that and your sweet corn may not have a chance to grow to maturity. Starting your sweet corn indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Gatlinburg the average date of last frost happens on April 15. You should expect an average low temperature of 0°F in the coldest months of winter.

It's important to remember that USDA zone info for Gatlinburg may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Gatlinburg last frost occurs after April 15 so make sure that you are prepared to cover your sweet corn in the event of a late frost.

USDA Zone Info for Gatlinburg

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Gatlinburg

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