One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when it's possible to plant tithonia is to check out the USDA zone info for Palatka.

Planting Calendar for Tithonia

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

You really shouldn't plant tithonia until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant tithonia in Palatka is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant tithonia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your tithonia may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your tithonia indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Palatka. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Palatka is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Palatka last frost occurs after February 15 so be sure to be ready to cover your tithonia in the event of one of those late frosts.

USDA Zone Info for Palatka

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Palatka

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