One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

The USDA zone info for Vine Grove should be reffered to in order to figure out when it's the best time to plant tithonia.

Planting Calendar for Tithonia

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

Since tithonia require warm weather you have 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 Vine Grove 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. 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 April 15 in Vine Grove. It might get as low as -5°F during the coldest months of winter.

Remember that USDA zone info for Vine Grove is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Vine Grove last frost occurs after April 15 so make sure that you are prepared to protect your tithonia in the event of a surprise late frost.

USDA Zone Info for Vine Grove

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Vine Grove

You may be interested in your other planting guides for Vine Grove.