One of the best tools that you have as gardeners to help us figure out 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 first opportunity to plant tithonia in Berlin should be estimated by referring to the USDA zone info.

Planting Calendar for Tithonia

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

Since tithonia do not do well in cold weather you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant tithonia in Berlin 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 really do well. You can get started a little bit earlier by starting your tithonia indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Berlin. In the coldest months of winter you should expect an average low temperature of 0°F.

It's important to remember that USDA zone info for Berlin may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Berlin there is a last frost after April 15 so be sure to be ready to protect your tithonia in the event of a late frost.

USDA Zone Info for Berlin

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Berlin

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