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.

The best time to plant tithonia in Laurel can be estimated by checking out the USDA zone info.

Planting Calendar for Tithonia

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

You can not plant tithonia until after the last frost because they are not cold tolerant.

The earliest that you can plant tithonia in Laurel is May. However, you really should wait until June 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 few weeks earlier.

Last Frost Date

On average the last frost is on May 15 in Laurel. You can expect an average low temperature of -25°F in the coldest months of winter.

It's important to remember that USDA zone info for Laurel may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Laurel it frosts late in the year after May 15 so always be ready to cover your tithonia in the event of one of those late frosts.

USDA Zone Info for Laurel

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

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

Plants to Grow in Laurel

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