Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of figuring out when it's the best time to plant tithonia is to refer to the USDA zone info for Bellefontaine.

Planting Calendar for Tithonia

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

Since tithonia do not do well in cold weather it's necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant tithonia in Bellefontaine 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 fully mature. You can get started a few weeks earlier by starting your tithonia indoors.

Last Frost Date

On average the last frost is on April 15 in Bellefontaine. It might get as low as -10°F during the coldest months of winter.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Bellefontaine and it changes from year to year. Half of the time in Bellefontaine there is a last frost after April 15 so just be sure to be ready to cover your tithonia in the event of a late frost.

USDA Zone Info for Bellefontaine

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 Bellefontaine

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