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.

You can estimate when it's a good idea to plant tithonia in Trussville by referring to the USDA zone info.

Planting Calendar for Tithonia

Frost tolerance for tithonia:	Not tolerant of frost.
When to plant:	After the last frost.

You really shouldn't plant tithonia until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant tithonia in Trussville 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 tithonia and expect a good harvest is probably August. If you wait any later than that and your tithonia may not have a chance to really do well. You can get started a couple of weeks earlier by starting your tithonia indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Trussville. It might get as low as 5°F during the coldest months of winter.

Since the USDA zone info for Trussville is not always accurate the actual date of last frost is different every year. Since half of the time in Trussville there is a last frost after April 15 be ready to cover your tithonia if you have one of those late frosts.

USDA Zone Info for Trussville

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 Trussville

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