One of the first steps you take when you are determining your gardening schedule is find your 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 chance to plant tithonia in Hamburg should be figured out by looking at 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 require warm weather you need to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant tithonia in Hamburg 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 grow to maturity. You can get started a few weeks earlier by starting your tithonia indoors.

Last Frost Date

In Hamburg the average date of last frost happens on April 15. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Hamburg may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Hamburg you get surprised by a frost after April 15 be ready to protect your tithonia if you have one of those late frosts.

USDA Zone Info for Hamburg

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Hamburg

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