One of the first steps you take when you are figuring out 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.

By checking out the USDA zone info for Greenfield you will be able to figure out when to plant tithonia.

Planting Calendar for Tithonia

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

You should not plant tithonia until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant tithonia in Greenfield 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. If you wait any later than that and your tithonia may not have a chance to really do well. You can get started a few weeks earlier by starting your tithonia indoors.

Last Frost Date

On average the last frost is on February 15 in Greenfield. In the coldest months of winter you can expect an average low temperature of 20°F.

Always keep in mind that USDA zone info for Greenfield is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Greenfield there is a last frost after February 15 be ready to protect your tithonia if you have one of those late frosts.

USDA Zone Info for Greenfield

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 Greenfield

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