One of the best tools that you have as gardeners to help us figure out 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.

In Shelbyville you can estimate when it's a good idea to plant balsam by looking at the USDA zone info.

Planting Calendar for Balsam

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

It's not a good idea to plant balsam until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant balsam in Shelbyville 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 balsam and expect a good harvest is probably August. You probably don't want to wait any later than that or else your balsam may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your balsam indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Shelbyville. In the coldest months of winter you can expect an average low temperature of -10°F.

It's important to remember that USDA zone info for Shelbyville is just an average and the actual date of last frost is different every year. Half of the time in Shelbyville it frosts late in the year after April 15 so be sure to be ready to protect your balsam if you have a surprise late frost.

USDA Zone Info for Shelbyville

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 Shelbyville

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