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.

It's a good idea to estimate when to plant balsam by using the USDA zone info for Chattanooga.

Planting Calendar for Balsam

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

Balsam require warm weather which tells us that it is important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant balsam in Chattanooga 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 really do well. If you are starting your balsam indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Chattanooga. In the coldest months of winter you can expect an average low temperature of 5°F.

Since the USDA zone info for Chattanooga 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 Chattanooga there is a last frost after April 15 so make sure that you are prepared to protect your balsam if you have one of those late frosts.

USDA Zone Info for Chattanooga

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Chattanooga

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