One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Dillon should be looked at to estimate when to plant tithonia.

Planting Calendar for Tithonia

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

Since tithonia are not cold tolerant you must wait until after the last frost before you can plant them.

The earliest that you can plant tithonia in Dillon 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. You probably don't want to wait any later than that or else your tithonia may not have a chance to fully mature. Starting your tithonia indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Dillon may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Dillon it frosts late in the year after March 15 be ready to protect your tithonia if you have one of those late frosts.

USDA Zone Info for Dillon

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 Dillon

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