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.

You can estimate when you can plant tithonia in Rawlins by reviewing the USDA zone info.

Planting Calendar for Tithonia

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

Tithonia require warm weather which tells us that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant tithonia in Rawlins 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. Any later than that and your tithonia may not have a chance to grow to maturity. If you are starting your tithonia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Rawlins the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -25°F.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Rawlins and it changes from year to year. Half of the time in Rawlins it frosts late in the year after May 15 so always be ready to protect your tithonia if you have one of those late frosts.

USDA Zone Info for Rawlins

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 Rawlins

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