Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when it's possible to plant nicotiana in Wyoming by using the USDA zone info.

Planting Calendar for Nicotiana

Frost tolerance for nicotiana:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since nicotiana require warm weather you must wait until after the last frost before you can plant them.

The earliest that you can plant nicotiana in Wyoming 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 nicotiana and expect a good harvest is probably August. If you wait any later than that and your nicotiana may not have a chance to grow to maturity. If you are starting your nicotiana indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Wyoming. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Wyoming is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Wyoming you get a frost after April 15 so be sure to be ready to protect your nicotiana in the event of one of those late frosts.

USDA Zone Info for Wyoming

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Wyoming

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