One of the first steps you take when you are determining your gardening schedule is find your 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.

A common way of getting a good idea when it's possible to plant tithonia is to examine the USDA zone info for Americus.

Planting Calendar for Tithonia

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

Since tithonia require warm weather it is important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant tithonia in Americus 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. Any later than that and your tithonia may not have a chance to grow to maturity. Starting your tithonia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Americus. In the coldest months of winter you can expect an average low temperature of 10°F.

Always keep in mind that USDA zone info for Americus is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Americus you get a frost after March 15 so always be ready to cover your tithonia in the event of one of those late frosts.

USDA Zone Info for Americus

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 Americus

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